Home / 288,042.60-397,045.80-197,241.36

Finding the Fourth Proportional to 288,042.60, 397,045.80 and 197,241.36

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Solution

The fourth proportional to 288,042.60, 397,045.80 and 197,241.36 is: 271,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,042.60 : 397,045.80 = 197,241.36 : x
  2. Step 2: Convert to fraction form
    288,042.60/397,045.80 = 197,241.36/x
  3. Step 3: Cross multiply
    288,042.60x = 397,045.80 × 197,241.36
  4. Step 4: Simplify right side
    288,042.60x = 78,313,853,574.29
  5. Step 5: Solve for x
    x = 78,313,853,574.29/288,042.60
  6. Step 6: Final answer
    x = 271,882.89

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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.