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Finding the Fourth Proportional to 608,265.20, 912,311.40 and 187,583.60

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Solution

The fourth proportional to 608,265.20, 912,311.40 and 187,583.60 is: 281,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,265.20 : 912,311.40 = 187,583.60 : x
  2. Step 2: Convert to fraction form
    608,265.20/912,311.40 = 187,583.60/x
  3. Step 3: Cross multiply
    608,265.20x = 912,311.40 × 187,583.60
  4. Step 4: Simplify right side
    608,265.20x = 171,134,656,733.04
  5. Step 5: Solve for x
    x = 171,134,656,733.04/608,265.20
  6. Step 6: Final answer
    x = 281,348.76

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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.