Home / 285,046.28-393,357.78-155,984.24

Finding the Fourth Proportional to 285,046.28, 393,357.78 and 155,984.24

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Solution

The fourth proportional to 285,046.28, 393,357.78 and 155,984.24 is: 215,254.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,046.28 : 393,357.78 = 155,984.24 : x
  2. Step 2: Convert to fraction form
    285,046.28/393,357.78 = 155,984.24/x
  3. Step 3: Cross multiply
    285,046.28x = 393,357.78 × 155,984.24
  4. Step 4: Simplify right side
    285,046.28x = 61,357,614,361.39
  5. Step 5: Solve for x
    x = 61,357,614,361.39/285,046.28
  6. Step 6: Final answer
    x = 215,254.92

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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.