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Finding the Fourth Proportional to 457,121.66, 630,809.33 and 253,160.45

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Solution

The fourth proportional to 457,121.66, 630,809.33 and 253,160.45 is: 349,351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,121.66 : 630,809.33 = 253,160.45 : x
  2. Step 2: Convert to fraction form
    457,121.66/630,809.33 = 253,160.45/x
  3. Step 3: Cross multiply
    457,121.66x = 630,809.33 × 253,160.45
  4. Step 4: Simplify right side
    457,121.66x = 159,695,969,427.15
  5. Step 5: Solve for x
    x = 159,695,969,427.15/457,121.66
  6. Step 6: Final answer
    x = 349,351.14

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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.