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Finding the Fourth Proportional to 457,447.35, 631,278.83 and 253,501.64

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Solution

The fourth proportional to 457,447.35, 631,278.83 and 253,501.64 is: 349,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,447.35 : 631,278.83 = 253,501.64 : x
  2. Step 2: Convert to fraction form
    457,447.35/631,278.83 = 253,501.64/x
  3. Step 3: Cross multiply
    457,447.35x = 631,278.83 × 253,501.64
  4. Step 4: Simplify right side
    457,447.35x = 160,030,218,546.94
  5. Step 5: Solve for x
    x = 160,030,218,546.94/457,447.35
  6. Step 6: Final answer
    x = 349,833.08

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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.