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Finding the Fourth Proportional to 254,101.59, 381,111.49 and 74,144.77

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Solution

The fourth proportional to 254,101.59, 381,111.49 and 74,144.77 is: 111,205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,101.59 : 381,111.49 = 74,144.77 : x
  2. Step 2: Convert to fraction form
    254,101.59/381,111.49 = 74,144.77/x
  3. Step 3: Cross multiply
    254,101.59x = 381,111.49 × 74,144.77
  4. Step 4: Simplify right side
    254,101.59x = 28,257,421,957.53
  5. Step 5: Solve for x
    x = 28,257,421,957.53/254,101.59
  6. Step 6: Final answer
    x = 111,205.22

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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.