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Finding the Fourth Proportional to 278,700.66, 384,607.53 and 151,373.52

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Solution

The fourth proportional to 278,700.66, 384,607.53 and 151,373.52 is: 208,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,700.66 : 384,607.53 = 151,373.52 : x
  2. Step 2: Convert to fraction form
    278,700.66/384,607.53 = 151,373.52/x
  3. Step 3: Cross multiply
    278,700.66x = 384,607.53 × 151,373.52
  4. Step 4: Simplify right side
    278,700.66x = 58,219,395,634.61
  5. Step 5: Solve for x
    x = 58,219,395,634.61/278,700.66
  6. Step 6: Final answer
    x = 208,895.79

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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.