Home / 211,267.81-316,688.48-132,437.40

Finding the Fourth Proportional to 211,267.81, 316,688.48 and 132,437.40

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Solution

The fourth proportional to 211,267.81, 316,688.48 and 132,437.40 is: 198,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,267.81 : 316,688.48 = 132,437.40 : x
  2. Step 2: Convert to fraction form
    211,267.81/316,688.48 = 132,437.40/x
  3. Step 3: Cross multiply
    211,267.81x = 316,688.48 × 132,437.40
  4. Step 4: Simplify right side
    211,267.81x = 41,941,396,655.52
  5. Step 5: Solve for x
    x = 41,941,396,655.52/211,267.81
  6. Step 6: Final answer
    x = 198,522.42

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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.