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Finding the Fourth Proportional to 285,592.98, 394,123.38 and 156,522.90

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Solution

The fourth proportional to 285,592.98, 394,123.38 and 156,522.90 is: 216,004.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,592.98 : 394,123.38 = 156,522.90 : x
  2. Step 2: Convert to fraction form
    285,592.98/394,123.38 = 156,522.90/x
  3. Step 3: Cross multiply
    285,592.98x = 394,123.38 × 156,522.90
  4. Step 4: Simplify right side
    285,592.98x = 61,689,334,395.40
  5. Step 5: Solve for x
    x = 61,689,334,395.40/285,592.98
  6. Step 6: Final answer
    x = 216,004.38

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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.