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Finding the Fourth Proportional to 457,955.17, 631,952.33 and 253,991.45

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Solution

The fourth proportional to 457,955.17, 631,952.33 and 253,991.45 is: 350,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,955.17 : 631,952.33 = 253,991.45 : x
  2. Step 2: Convert to fraction form
    457,955.17/631,952.33 = 253,991.45/x
  3. Step 3: Cross multiply
    457,955.17x = 631,952.33 × 253,991.45
  4. Step 4: Simplify right side
    457,955.17x = 160,510,486,811.47
  5. Step 5: Solve for x
    x = 160,510,486,811.47/457,955.17
  6. Step 6: Final answer
    x = 350,493.89

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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.