Home / 309,397.29-464,096.28-84,759.66

Finding the Fourth Proportional to 309,397.29, 464,096.28 and 84,759.66

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Solution

The fourth proportional to 309,397.29, 464,096.28 and 84,759.66 is: 127,139.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,397.29 : 464,096.28 = 84,759.66 : x
  2. Step 2: Convert to fraction form
    309,397.29/464,096.28 = 84,759.66/x
  3. Step 3: Cross multiply
    309,397.29x = 464,096.28 × 84,759.66
  4. Step 4: Simplify right side
    309,397.29x = 39,336,642,900.06
  5. Step 5: Solve for x
    x = 39,336,642,900.06/309,397.29
  6. Step 6: Final answer
    x = 127,139.58

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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.