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Finding the Fourth Proportional to 341,427.62, 512,805.36 and 278,294.06

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Solution

The fourth proportional to 341,427.62, 512,805.36 and 278,294.06 is: 417,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,427.62 : 512,805.36 = 278,294.06 : x
  2. Step 2: Convert to fraction form
    341,427.62/512,805.36 = 278,294.06/x
  3. Step 3: Cross multiply
    341,427.62x = 512,805.36 × 278,294.06
  4. Step 4: Simplify right side
    341,427.62x = 142,710,685,624.16
  5. Step 5: Solve for x
    x = 142,710,685,624.16/341,427.62
  6. Step 6: Final answer
    x = 417,982.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.