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Finding the Fourth Proportional to 457,255.99, 631,005.42 and 253,302.72

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Solution

The fourth proportional to 457,255.99, 631,005.42 and 253,302.72 is: 349,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,255.99 : 631,005.42 = 253,302.72 : x
  2. Step 2: Convert to fraction form
    457,255.99/631,005.42 = 253,302.72/x
  3. Step 3: Cross multiply
    457,255.99x = 631,005.42 × 253,302.72
  4. Step 4: Simplify right side
    457,255.99x = 159,835,389,220.74
  5. Step 5: Solve for x
    x = 159,835,389,220.74/457,255.99
  6. Step 6: Final answer
    x = 349,553.41

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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.