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Finding the Fourth Proportional to 349,666, 524,500.92 and 87,010

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Solution

The fourth proportional to 349,666, 524,500.92 and 87,010 is: 130,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,666 : 524,500.92 = 87,010 : x
  2. Step 2: Convert to fraction form
    349,666/524,500.92 = 87,010/x
  3. Step 3: Cross multiply
    349,666x = 524,500.92 × 87,010
  4. Step 4: Simplify right side
    349,666x = 45,636,825,049.20
  5. Step 5: Solve for x
    x = 45,636,825,049.20/349,666
  6. Step 6: Final answer
    x = 130,515.48

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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.