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Finding the Fourth Proportional to 690,051, 1,035,207.24 and 240,900.12

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Solution

The fourth proportional to 690,051, 1,035,207.24 and 240,900.12 is: 361,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,051 : 1,035,207.24 = 240,900.12 : x
  2. Step 2: Convert to fraction form
    690,051/1,035,207.24 = 240,900.12/x
  3. Step 3: Cross multiply
    690,051x = 1,035,207.24 × 240,900.12
  4. Step 4: Simplify right side
    690,051x = 249,381,548,340.87
  5. Step 5: Solve for x
    x = 249,381,548,340.87/690,051
  6. Step 6: Final answer
    x = 361,395.82

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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.