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Finding the Fourth Proportional to 353,862.61, 488,344.22 and 200,915.04

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Solution

The fourth proportional to 353,862.61, 488,344.22 and 200,915.04 is: 277,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,862.61 : 488,344.22 = 200,915.04 : x
  2. Step 2: Convert to fraction form
    353,862.61/488,344.22 = 200,915.04/x
  3. Step 3: Cross multiply
    353,862.61x = 488,344.22 × 200,915.04
  4. Step 4: Simplify right side
    353,862.61x = 98,115,698,495.07
  5. Step 5: Solve for x
    x = 98,115,698,495.07/353,862.61
  6. Step 6: Final answer
    x = 277,270.60

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1.5x scale

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.