Home / 309,531.66-464,298.15-84,895.30

Finding the Fourth Proportional to 309,531.66, 464,298.15 and 84,895.30

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Solution

The fourth proportional to 309,531.66, 464,298.15 and 84,895.30 is: 127,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,531.66 : 464,298.15 = 84,895.30 : x
  2. Step 2: Convert to fraction form
    309,531.66/464,298.15 = 84,895.30/x
  3. Step 3: Cross multiply
    309,531.66x = 464,298.15 × 84,895.30
  4. Step 4: Simplify right side
    309,531.66x = 39,416,730,733.70
  5. Step 5: Solve for x
    x = 39,416,730,733.70/309,531.66
  6. Step 6: Final answer
    x = 127,343.13

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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.