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Finding the Fourth Proportional to 398,681.34, 550,182.83 and 237,543.18

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Solution

The fourth proportional to 398,681.34, 550,182.83 and 237,543.18 is: 327,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,681.34 : 550,182.83 = 237,543.18 : x
  2. Step 2: Convert to fraction form
    398,681.34/550,182.83 = 237,543.18/x
  3. Step 3: Cross multiply
    398,681.34x = 550,182.83 × 237,543.18
  4. Step 4: Simplify right side
    398,681.34x = 130,692,177,831.88
  5. Step 5: Solve for x
    x = 130,692,177,831.88/398,681.34
  6. Step 6: Final answer
    x = 327,811.12

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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.