Home / 280,242.20-386,743.56-152,924.78

Finding the Fourth Proportional to 280,242.20, 386,743.56 and 152,924.78

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Solution

The fourth proportional to 280,242.20, 386,743.56 and 152,924.78 is: 211,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,242.20 : 386,743.56 = 152,924.78 : x
  2. Step 2: Convert to fraction form
    280,242.20/386,743.56 = 152,924.78/x
  3. Step 3: Cross multiply
    280,242.20x = 386,743.56 × 152,924.78
  4. Step 4: Simplify right side
    280,242.20x = 59,142,673,829.42
  5. Step 5: Solve for x
    x = 59,142,673,829.42/280,242.20
  6. Step 6: Final answer
    x = 211,041.28

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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.