Home / 296,834.91-445,257.23-86,484.39

Finding the Fourth Proportional to 296,834.91, 445,257.23 and 86,484.39

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Solution

The fourth proportional to 296,834.91, 445,257.23 and 86,484.39 is: 129,728.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,834.91 : 445,257.23 = 86,484.39 : x
  2. Step 2: Convert to fraction form
    296,834.91/445,257.23 = 86,484.39/x
  3. Step 3: Cross multiply
    296,834.91x = 445,257.23 × 86,484.39
  4. Step 4: Simplify right side
    296,834.91x = 38,507,799,497.22
  5. Step 5: Solve for x
    x = 38,507,799,497.22/296,834.91
  6. Step 6: Final answer
    x = 129,728.00

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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.