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Finding the Fourth Proportional to 457,530.49, 631,375.81 and 253,600.39

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Solution

The fourth proportional to 457,530.49, 631,375.81 and 253,600.39 is: 349,959.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,530.49 : 631,375.81 = 253,600.39 : x
  2. Step 2: Convert to fraction form
    457,530.49/631,375.81 = 253,600.39/x
  3. Step 3: Cross multiply
    457,530.49x = 631,375.81 × 253,600.39
  4. Step 4: Simplify right side
    457,530.49x = 160,117,151,652.57
  5. Step 5: Solve for x
    x = 160,117,151,652.57/457,530.49
  6. Step 6: Final answer
    x = 349,959.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.