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Finding the Fourth Proportional to 240,574.57, 360,142.88 and 145,517.09

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Solution

The fourth proportional to 240,574.57, 360,142.88 and 145,517.09 is: 217,840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,574.57 : 360,142.88 = 145,517.09 : x
  2. Step 2: Convert to fraction form
    240,574.57/360,142.88 = 145,517.09/x
  3. Step 3: Cross multiply
    240,574.57x = 360,142.88 × 145,517.09
  4. Step 4: Simplify right side
    240,574.57x = 52,406,941,353.52
  5. Step 5: Solve for x
    x = 52,406,941,353.52/240,574.57
  6. Step 6: Final answer
    x = 217,840.74

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1.5x scale

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.