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Finding the Fourth Proportional to 457,253.22, 631,009.32 and 253,317.38

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Solution

The fourth proportional to 457,253.22, 631,009.32 and 253,317.38 is: 349,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,253.22 : 631,009.32 = 253,317.38 : x
  2. Step 2: Convert to fraction form
    457,253.22/631,009.32 = 253,317.38/x
  3. Step 3: Cross multiply
    457,253.22x = 631,009.32 × 253,317.38
  4. Step 4: Simplify right side
    457,253.22x = 159,845,627,697.98
  5. Step 5: Solve for x
    x = 159,845,627,697.98/457,253.22
  6. Step 6: Final answer
    x = 349,577.92

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1.5x scale

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.