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Finding the Fourth Proportional to 457,832.05, 631,807.21 and 253,877.90

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Solution

The fourth proportional to 457,832.05, 631,807.21 and 253,877.90 is: 350,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,832.05 : 631,807.21 = 253,877.90 : x
  2. Step 2: Convert to fraction form
    457,832.05/631,807.21 = 253,877.90/x
  3. Step 3: Cross multiply
    457,832.05x = 631,807.21 × 253,877.90
  4. Step 4: Simplify right side
    457,832.05x = 160,401,885,552.00
  5. Step 5: Solve for x
    x = 160,401,885,552.00/457,832.05
  6. Step 6: Final answer
    x = 350,350.93

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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.