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Finding the Fourth Proportional to 347,560.10, 479,224.28 and 278,594.42

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Solution

The fourth proportional to 347,560.10, 479,224.28 and 278,594.42 is: 384,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,560.10 : 479,224.28 = 278,594.42 : x
  2. Step 2: Convert to fraction form
    347,560.10/479,224.28 = 278,594.42/x
  3. Step 3: Cross multiply
    347,560.10x = 479,224.28 × 278,594.42
  4. Step 4: Simplify right side
    347,560.10x = 133,509,206,547.42
  5. Step 5: Solve for x
    x = 133,509,206,547.42/347,560.10
  6. Step 6: Final answer
    x = 384,132.73

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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.