Home / 290,241,104.80-400,517,604.24-180,230,457.76

Finding the Fourth Proportional to 290,241,104.80, 400,517,604.24 and 180,230,457.76

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Solution

The fourth proportional to 290,241,104.80, 400,517,604.24 and 180,230,457.76 is: 248,708,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,241,104.80 : 400,517,604.24 = 180,230,457.76 : x
  2. Step 2: Convert to fraction form
    290,241,104.80/400,517,604.24 = 180,230,457.76/x
  3. Step 3: Cross multiply
    290,241,104.80x = 400,517,604.24 × 180,230,457.76
  4. Step 4: Simplify right side
    290,241,104.80x = 72,185,471,153,113,712
  5. Step 5: Solve for x
    x = 72,185,471,153,113,712/290,241,104.80
  6. Step 6: Final answer
    x = 248,708,642.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.