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Finding the Fourth Proportional to 344,139.60, 474,780.12 and 253,710.54

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Solution

The fourth proportional to 344,139.60, 474,780.12 and 253,710.54 is: 350,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,139.60 : 474,780.12 = 253,710.54 : x
  2. Step 2: Convert to fraction form
    344,139.60/474,780.12 = 253,710.54/x
  3. Step 3: Cross multiply
    344,139.60x = 474,780.12 × 253,710.54
  4. Step 4: Simplify right side
    344,139.60x = 120,456,720,626.47
  5. Step 5: Solve for x
    x = 120,456,720,626.47/344,139.60
  6. Step 6: Final answer
    x = 350,022.84

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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.