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Finding the Fourth Proportional to 398,285.71, 549,837.42 and 269,902.43

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Solution

The fourth proportional to 398,285.71, 549,837.42 and 269,902.43 is: 372,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,285.71 : 549,837.42 = 269,902.43 : x
  2. Step 2: Convert to fraction form
    398,285.71/549,837.42 = 269,902.43/x
  3. Step 3: Cross multiply
    398,285.71x = 549,837.42 × 269,902.43
  4. Step 4: Simplify right side
    398,285.71x = 148,402,454,063.50
  5. Step 5: Solve for x
    x = 148,402,454,063.50/398,285.71
  6. Step 6: Final answer
    x = 372,603.01

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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.