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Finding the Fourth Proportional to 194,472.40, 291,708.60 and 131,486.80

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Solution

The fourth proportional to 194,472.40, 291,708.60 and 131,486.80 is: 197,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,472.40 : 291,708.60 = 131,486.80 : x
  2. Step 2: Convert to fraction form
    194,472.40/291,708.60 = 131,486.80/x
  3. Step 3: Cross multiply
    194,472.40x = 291,708.60 × 131,486.80
  4. Step 4: Simplify right side
    194,472.40x = 38,355,830,346.48
  5. Step 5: Solve for x
    x = 38,355,830,346.48/194,472.40
  6. Step 6: Final answer
    x = 197,230.20

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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.