Home / 215,036.55-296,758.10-118,247.78

Finding the Fourth Proportional to 215,036.55, 296,758.10 and 118,247.78

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Solution

The fourth proportional to 215,036.55, 296,758.10 and 118,247.78 is: 163,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,036.55 : 296,758.10 = 118,247.78 : x
  2. Step 2: Convert to fraction form
    215,036.55/296,758.10 = 118,247.78/x
  3. Step 3: Cross multiply
    215,036.55x = 296,758.10 × 118,247.78
  4. Step 4: Simplify right side
    215,036.55x = 35,090,984,446.99
  5. Step 5: Solve for x
    x = 35,090,984,446.99/215,036.55
  6. Step 6: Final answer
    x = 163,186.14

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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.