Home / 421,322.13-581,426.59-230,335.52

Finding the Fourth Proportional to 421,322.13, 581,426.59 and 230,335.52

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Solution

The fourth proportional to 421,322.13, 581,426.59 and 230,335.52 is: 317,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,322.13 : 581,426.59 = 230,335.52 : x
  2. Step 2: Convert to fraction form
    421,322.13/581,426.59 = 230,335.52/x
  3. Step 3: Cross multiply
    421,322.13x = 581,426.59 × 230,335.52
  4. Step 4: Simplify right side
    421,322.13x = 133,923,198,775.90
  5. Step 5: Solve for x
    x = 133,923,198,775.90/421,322.13
  6. Step 6: Final answer
    x = 317,864.14

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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.