Home / 217,740.29-300,505.73-127,118.52

Finding the Fourth Proportional to 217,740.29, 300,505.73 and 127,118.52

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Solution

The fourth proportional to 217,740.29, 300,505.73 and 127,118.52 is: 175,437.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,740.29 : 300,505.73 = 127,118.52 : x
  2. Step 2: Convert to fraction form
    217,740.29/300,505.73 = 127,118.52/x
  3. Step 3: Cross multiply
    217,740.29x = 300,505.73 × 127,118.52
  4. Step 4: Simplify right side
    217,740.29x = 38,199,843,966.92
  5. Step 5: Solve for x
    x = 38,199,843,966.92/217,740.29
  6. Step 6: Final answer
    x = 175,437.65

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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.