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Finding the Fourth Proportional to 608,427.90, 912,337.17 and 187,649.10

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Solution

The fourth proportional to 608,427.90, 912,337.17 and 187,649.10 is: 281,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,427.90 : 912,337.17 = 187,649.10 : x
  2. Step 2: Convert to fraction form
    608,427.90/912,337.17 = 187,649.10/x
  3. Step 3: Cross multiply
    608,427.90x = 912,337.17 × 187,649.10
  4. Step 4: Simplify right side
    608,427.90x = 171,199,248,847.05
  5. Step 5: Solve for x
    x = 171,199,248,847.05/608,427.90
  6. Step 6: Final answer
    x = 281,379.68

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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.