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Finding the Fourth Proportional to 272,915.60, 409,373.40 and 255,200.90

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Solution

The fourth proportional to 272,915.60, 409,373.40 and 255,200.90 is: 382,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,915.60 : 409,373.40 = 255,200.90 : x
  2. Step 2: Convert to fraction form
    272,915.60/409,373.40 = 255,200.90/x
  3. Step 3: Cross multiply
    272,915.60x = 409,373.40 × 255,200.90
  4. Step 4: Simplify right side
    272,915.60x = 104,472,460,116.06
  5. Step 5: Solve for x
    x = 104,472,460,116.06/272,915.60
  6. Step 6: Final answer
    x = 382,801.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.