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Finding the Fourth Proportional to 290,324.17, 400,653.69 and 159,503.51

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Solution

The fourth proportional to 290,324.17, 400,653.69 and 159,503.51 is: 220,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,324.17 : 400,653.69 = 159,503.51 : x
  2. Step 2: Convert to fraction form
    290,324.17/400,653.69 = 159,503.51/x
  3. Step 3: Cross multiply
    290,324.17x = 400,653.69 × 159,503.51
  4. Step 4: Simplify right side
    290,324.17x = 63,905,669,849.45
  5. Step 5: Solve for x
    x = 63,905,669,849.45/290,324.17
  6. Step 6: Final answer
    x = 220,118.32

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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.