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Finding the Fourth Proportional to 273,265.10, 409,897.65 and 86,252.30

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Solution

The fourth proportional to 273,265.10, 409,897.65 and 86,252.30 is: 129,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,265.10 : 409,897.65 = 86,252.30 : x
  2. Step 2: Convert to fraction form
    273,265.10/409,897.65 = 86,252.30/x
  3. Step 3: Cross multiply
    273,265.10x = 409,897.65 × 86,252.30
  4. Step 4: Simplify right side
    273,265.10x = 35,354,615,077.10
  5. Step 5: Solve for x
    x = 35,354,615,077.10/273,265.10
  6. Step 6: Final answer
    x = 129,378.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.