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Finding the Fourth Proportional to 560,123.40, 840,185.10 and 160,777.20

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Solution

The fourth proportional to 560,123.40, 840,185.10 and 160,777.20 is: 241,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,123.40 : 840,185.10 = 160,777.20 : x
  2. Step 2: Convert to fraction form
    560,123.40/840,185.10 = 160,777.20/x
  3. Step 3: Cross multiply
    560,123.40x = 840,185.10 × 160,777.20
  4. Step 4: Simplify right side
    560,123.40x = 135,082,607,859.72
  5. Step 5: Solve for x
    x = 135,082,607,859.72/560,123.40
  6. Step 6: Final answer
    x = 241,165.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.