Home / 285,273.26-393,689.40-157,948.85

Finding the Fourth Proportional to 285,273.26, 393,689.40 and 157,948.85

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Solution

The fourth proportional to 285,273.26, 393,689.40 and 157,948.85 is: 217,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,273.26 : 393,689.40 = 157,948.85 : x
  2. Step 2: Convert to fraction form
    285,273.26/393,689.40 = 157,948.85/x
  3. Step 3: Cross multiply
    285,273.26x = 393,689.40 × 157,948.85
  4. Step 4: Simplify right side
    285,273.26x = 62,182,788,379.11
  5. Step 5: Solve for x
    x = 62,182,788,379.11/285,273.26
  6. Step 6: Final answer
    x = 217,976.23

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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.