Home / 321,831.80-482,904.49-132,349.10

Finding the Fourth Proportional to 321,831.80, 482,904.49 and 132,349.10

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Solution

The fourth proportional to 321,831.80, 482,904.49 and 132,349.10 is: 198,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,831.80 : 482,904.49 = 132,349.10 : x
  2. Step 2: Convert to fraction form
    321,831.80/482,904.49 = 132,349.10/x
  3. Step 3: Cross multiply
    321,831.80x = 482,904.49 × 132,349.10
  4. Step 4: Simplify right side
    321,831.80x = 63,911,974,637.46
  5. Step 5: Solve for x
    x = 63,911,974,637.46/321,831.80
  6. Step 6: Final answer
    x = 198,588.13

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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.