Home / 287,845.60-397,218.18-160,542.76

Finding the Fourth Proportional to 287,845.60, 397,218.18 and 160,542.76

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Solution

The fourth proportional to 287,845.60, 397,218.18 and 160,542.76 is: 221,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,845.60 : 397,218.18 = 160,542.76 : x
  2. Step 2: Convert to fraction form
    287,845.60/397,218.18 = 160,542.76/x
  3. Step 3: Cross multiply
    287,845.60x = 397,218.18 × 160,542.76
  4. Step 4: Simplify right side
    287,845.60x = 63,770,502,939.38
  5. Step 5: Solve for x
    x = 63,770,502,939.38/287,845.60
  6. Step 6: Final answer
    x = 221,544.13

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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.