Home / 217,275.28-325,710.84-84,242.32

Finding the Fourth Proportional to 217,275.28, 325,710.84 and 84,242.32

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Solution

The fourth proportional to 217,275.28, 325,710.84 and 84,242.32 is: 126,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,275.28 : 325,710.84 = 84,242.32 : x
  2. Step 2: Convert to fraction form
    217,275.28/325,710.84 = 84,242.32/x
  3. Step 3: Cross multiply
    217,275.28x = 325,710.84 × 84,242.32
  4. Step 4: Simplify right side
    217,275.28x = 27,438,636,810.75
  5. Step 5: Solve for x
    x = 27,438,636,810.75/217,275.28
  6. Step 6: Final answer
    x = 126,285.13

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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.