Home / 311,097.18-466,646.07-86,457.66

Finding the Fourth Proportional to 311,097.18, 466,646.07 and 86,457.66

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Solution

The fourth proportional to 311,097.18, 466,646.07 and 86,457.66 is: 129,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,097.18 : 466,646.07 = 86,457.66 : x
  2. Step 2: Convert to fraction form
    311,097.18/466,646.07 = 86,457.66/x
  3. Step 3: Cross multiply
    311,097.18x = 466,646.07 × 86,457.66
  4. Step 4: Simplify right side
    311,097.18x = 40,345,127,260.40
  5. Step 5: Solve for x
    x = 40,345,127,260.40/311,097.18
  6. Step 6: Final answer
    x = 129,686.57

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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.