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Finding the Fourth Proportional to 356,247.02, 534,405.64 and 103,529.72

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Solution

The fourth proportional to 356,247.02, 534,405.64 and 103,529.72 is: 155,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,247.02 : 534,405.64 = 103,529.72 : x
  2. Step 2: Convert to fraction form
    356,247.02/534,405.64 = 103,529.72/x
  3. Step 3: Cross multiply
    356,247.02x = 534,405.64 × 103,529.72
  4. Step 4: Simplify right side
    356,247.02x = 55,326,866,275.62
  5. Step 5: Solve for x
    x = 55,326,866,275.62/356,247.02
  6. Step 6: Final answer
    x = 155,304.78

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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.