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Finding the Fourth Proportional to 398,269.65, 549,361.02 and 237,004.32

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Solution

The fourth proportional to 398,269.65, 549,361.02 and 237,004.32 is: 326,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,269.65 : 549,361.02 = 237,004.32 : x
  2. Step 2: Convert to fraction form
    398,269.65/549,361.02 = 237,004.32/x
  3. Step 3: Cross multiply
    398,269.65x = 549,361.02 × 237,004.32
  4. Step 4: Simplify right side
    398,269.65x = 130,200,934,979.61
  5. Step 5: Solve for x
    x = 130,200,934,979.61/398,269.65
  6. Step 6: Final answer
    x = 326,916.54

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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.