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Finding the Fourth Proportional to 398,007.84, 549,204.48 and 236,915.04

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Solution

The fourth proportional to 398,007.84, 549,204.48 and 236,915.04 is: 326,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,007.84 : 549,204.48 = 236,915.04 : x
  2. Step 2: Convert to fraction form
    398,007.84/549,204.48 = 236,915.04/x
  3. Step 3: Cross multiply
    398,007.84x = 549,204.48 × 236,915.04
  4. Step 4: Simplify right side
    398,007.84x = 130,114,801,347.38
  5. Step 5: Solve for x
    x = 130,114,801,347.38/398,007.84
  6. Step 6: Final answer
    x = 326,915.17

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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.