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Finding the Fourth Proportional to 457,404.64, 631,208.97 and 253,453.77

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Solution

The fourth proportional to 457,404.64, 631,208.97 and 253,453.77 is: 349,760.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,404.64 : 631,208.97 = 253,453.77 : x
  2. Step 2: Convert to fraction form
    457,404.64/631,208.97 = 253,453.77/x
  3. Step 3: Cross multiply
    457,404.64x = 631,208.97 × 253,453.77
  4. Step 4: Simplify right side
    457,404.64x = 159,982,293,104.32
  5. Step 5: Solve for x
    x = 159,982,293,104.32/457,404.64
  6. Step 6: Final answer
    x = 349,760.98

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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.