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Finding the Fourth Proportional to 272,999.64, 409,218.84 and 104,480.40

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Solution

The fourth proportional to 272,999.64, 409,218.84 and 104,480.40 is: 156,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,999.64 : 409,218.84 = 104,480.40 : x
  2. Step 2: Convert to fraction form
    272,999.64/409,218.84 = 104,480.40/x
  3. Step 3: Cross multiply
    272,999.64x = 409,218.84 × 104,480.40
  4. Step 4: Simplify right side
    272,999.64x = 42,755,348,090.74
  5. Step 5: Solve for x
    x = 42,755,348,090.74/272,999.64
  6. Step 6: Final answer
    x = 156,613.20

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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.