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Finding the Fourth Proportional to 286,502, 429,753.02 and 89,510

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Solution

The fourth proportional to 286,502, 429,753.02 and 89,510 is: 134,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,502 : 429,753.02 = 89,510 : x
  2. Step 2: Convert to fraction form
    286,502/429,753.02 = 89,510/x
  3. Step 3: Cross multiply
    286,502x = 429,753.02 × 89,510
  4. Step 4: Simplify right side
    286,502x = 38,467,192,820.20
  5. Step 5: Solve for x
    x = 38,467,192,820.20/286,502
  6. Step 6: Final answer
    x = 134,265.01

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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.