Home / 421,336.47-581,444.29-230,349.81

Finding the Fourth Proportional to 421,336.47, 581,444.29 and 230,349.81

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Solution

The fourth proportional to 421,336.47, 581,444.29 and 230,349.81 is: 317,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,336.47 : 581,444.29 = 230,349.81 : x
  2. Step 2: Convert to fraction form
    421,336.47/581,444.29 = 230,349.81/x
  3. Step 3: Cross multiply
    421,336.47x = 581,444.29 × 230,349.81
  4. Step 4: Simplify right side
    421,336.47x = 133,935,581,727.09
  5. Step 5: Solve for x
    x = 133,935,581,727.09/421,336.47
  6. Step 6: Final answer
    x = 317,882.72

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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.