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Finding the Fourth Proportional to 253,373.04, 349,654.82 and 138,651.70

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Solution

The fourth proportional to 253,373.04, 349,654.82 and 138,651.70 is: 191,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,373.04 : 349,654.82 = 138,651.70 : x
  2. Step 2: Convert to fraction form
    253,373.04/349,654.82 = 138,651.70/x
  3. Step 3: Cross multiply
    253,373.04x = 349,654.82 × 138,651.70
  4. Step 4: Simplify right side
    253,373.04x = 48,480,235,206.19
  5. Step 5: Solve for x
    x = 48,480,235,206.19/253,373.04
  6. Step 6: Final answer
    x = 191,339.36

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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.