Home / 211,269.81-316,691.47-132,439.40

Finding the Fourth Proportional to 211,269.81, 316,691.47 and 132,439.40

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Solution

The fourth proportional to 211,269.81, 316,691.47 and 132,439.40 is: 198,525.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,269.81 : 316,691.47 = 132,439.40 : x
  2. Step 2: Convert to fraction form
    211,269.81/316,691.47 = 132,439.40/x
  3. Step 3: Cross multiply
    211,269.81x = 316,691.47 × 132,439.40
  4. Step 4: Simplify right side
    211,269.81x = 41,942,428,271.92
  5. Step 5: Solve for x
    x = 41,942,428,271.92/211,269.81
  6. Step 6: Final answer
    x = 198,525.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.