Home / 285,418.50-393,877.56-158,102.34

Finding the Fourth Proportional to 285,418.50, 393,877.56 and 158,102.34

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Solution

The fourth proportional to 285,418.50, 393,877.56 and 158,102.34 is: 218,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,418.50 : 393,877.56 = 158,102.34 : x
  2. Step 2: Convert to fraction form
    285,418.50/393,877.56 = 158,102.34/x
  3. Step 3: Cross multiply
    285,418.50x = 393,877.56 × 158,102.34
  4. Step 4: Simplify right side
    285,418.50x = 62,272,963,909.49
  5. Step 5: Solve for x
    x = 62,272,963,909.49/285,418.50
  6. Step 6: Final answer
    x = 218,181.25

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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.