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Finding the Fourth Proportional to 254,012.89, 380,970.84 and 127,618.04

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Solution

The fourth proportional to 254,012.89, 380,970.84 and 127,618.04 is: 191,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,012.89 : 380,970.84 = 127,618.04 : x
  2. Step 2: Convert to fraction form
    254,012.89/380,970.84 = 127,618.04/x
  3. Step 3: Cross multiply
    254,012.89x = 380,970.84 × 127,618.04
  4. Step 4: Simplify right side
    254,012.89x = 48,618,751,897.95
  5. Step 5: Solve for x
    x = 48,618,751,897.95/254,012.89
  6. Step 6: Final answer
    x = 191,402.70

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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.