Home / 215,218.10-296,794.58-142,505.61

Finding the Fourth Proportional to 215,218.10, 296,794.58 and 142,505.61

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Solution

The fourth proportional to 215,218.10, 296,794.58 and 142,505.61 is: 196,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,218.10 : 296,794.58 = 142,505.61 : x
  2. Step 2: Convert to fraction form
    215,218.10/296,794.58 = 142,505.61/x
  3. Step 3: Cross multiply
    215,218.10x = 296,794.58 × 142,505.61
  4. Step 4: Simplify right side
    215,218.10x = 42,294,891,955.07
  5. Step 5: Solve for x
    x = 42,294,891,955.07/215,218.10
  6. Step 6: Final answer
    x = 196,521.08

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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.