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Finding the Fourth Proportional to 197,472.60, 272,216.70 and 143,672.40

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Solution

The fourth proportional to 197,472.60, 272,216.70 and 143,672.40 is: 198,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,472.60 : 272,216.70 = 143,672.40 : x
  2. Step 2: Convert to fraction form
    197,472.60/272,216.70 = 143,672.40/x
  3. Step 3: Cross multiply
    197,472.60x = 272,216.70 × 143,672.40
  4. Step 4: Simplify right side
    197,472.60x = 39,110,026,609.08
  5. Step 5: Solve for x
    x = 39,110,026,609.08/197,472.60
  6. Step 6: Final answer
    x = 198,052.93

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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.