Home / 285,276.27-393,693.55-157,951.87

Finding the Fourth Proportional to 285,276.27, 393,693.55 and 157,951.87

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Solution

The fourth proportional to 285,276.27, 393,693.55 and 157,951.87 is: 217,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,276.27 : 393,693.55 = 157,951.87 : x
  2. Step 2: Convert to fraction form
    285,276.27/393,693.55 = 157,951.87/x
  3. Step 3: Cross multiply
    285,276.27x = 393,693.55 × 157,951.87
  4. Step 4: Simplify right side
    285,276.27x = 62,184,632,429.44
  5. Step 5: Solve for x
    x = 62,184,632,429.44/285,276.27
  6. Step 6: Final answer
    x = 217,980.39

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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.