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Finding the Fourth Proportional to 280,681.62, 387,512.28 and 182,658.26

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Solution

The fourth proportional to 280,681.62, 387,512.28 and 182,658.26 is: 252,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,681.62 : 387,512.28 = 182,658.26 : x
  2. Step 2: Convert to fraction form
    280,681.62/387,512.28 = 182,658.26/x
  3. Step 3: Cross multiply
    280,681.62x = 387,512.28 × 182,658.26
  4. Step 4: Simplify right side
    280,681.62x = 70,782,316,855.87
  5. Step 5: Solve for x
    x = 70,782,316,855.87/280,681.62
  6. Step 6: Final answer
    x = 252,180.10

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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.