Home / 343,790.11-474,407.85-190,821

Finding the Fourth Proportional to 343,790.11, 474,407.85 and 190,821

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Solution

The fourth proportional to 343,790.11, 474,407.85 and 190,821 is: 263,320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,790.11 : 474,407.85 = 190,821 : x
  2. Step 2: Convert to fraction form
    343,790.11/474,407.85 = 190,821/x
  3. Step 3: Cross multiply
    343,790.11x = 474,407.85 × 190,821
  4. Step 4: Simplify right side
    343,790.11x = 90,526,980,344.85
  5. Step 5: Solve for x
    x = 90,526,980,344.85/343,790.11
  6. Step 6: Final answer
    x = 263,320.49

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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.