Home / 215,564.92-297,475.49-135,036.86

Finding the Fourth Proportional to 215,564.92, 297,475.49 and 135,036.86

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Solution

The fourth proportional to 215,564.92, 297,475.49 and 135,036.86 is: 186,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,564.92 : 297,475.49 = 135,036.86 : x
  2. Step 2: Convert to fraction form
    215,564.92/297,475.49 = 135,036.86/x
  3. Step 3: Cross multiply
    215,564.92x = 297,475.49 × 135,036.86
  4. Step 4: Simplify right side
    215,564.92x = 40,170,154,946.78
  5. Step 5: Solve for x
    x = 40,170,154,946.78/215,564.92
  6. Step 6: Final answer
    x = 186,348.30

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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.