Home / 285,092.40-393,417.76-157,773.36

Finding the Fourth Proportional to 285,092.40, 393,417.76 and 157,773.36

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Solution

The fourth proportional to 285,092.40, 393,417.76 and 157,773.36 is: 217,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,092.40 : 393,417.76 = 157,773.36 : x
  2. Step 2: Convert to fraction form
    285,092.40/393,417.76 = 157,773.36/x
  3. Step 3: Cross multiply
    285,092.40x = 393,417.76 × 157,773.36
  4. Step 4: Simplify right side
    285,092.40x = 62,070,841,878.87
  5. Step 5: Solve for x
    x = 62,070,841,878.87/285,092.40
  6. Step 6: Final answer
    x = 217,721.84

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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.