Home / 285,089.20-393,417.48-157,770.16

Finding the Fourth Proportional to 285,089.20, 393,417.48 and 157,770.16

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Solution

The fourth proportional to 285,089.20, 393,417.48 and 157,770.16 is: 217,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,089.20 : 393,417.48 = 157,770.16 : x
  2. Step 2: Convert to fraction form
    285,089.20/393,417.48 = 157,770.16/x
  3. Step 3: Cross multiply
    285,089.20x = 393,417.48 × 157,770.16
  4. Step 4: Simplify right side
    285,089.20x = 62,069,538,766.40
  5. Step 5: Solve for x
    x = 62,069,538,766.40/285,089.20
  6. Step 6: Final answer
    x = 217,719.71

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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.