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Finding the Fourth Proportional to 254,437.80, 381,656.70 and 248,605.80

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Solution

The fourth proportional to 254,437.80, 381,656.70 and 248,605.80 is: 372,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,437.80 : 381,656.70 = 248,605.80 : x
  2. Step 2: Convert to fraction form
    254,437.80/381,656.70 = 248,605.80/x
  3. Step 3: Cross multiply
    254,437.80x = 381,656.70 × 248,605.80
  4. Step 4: Simplify right side
    254,437.80x = 94,882,069,228.86
  5. Step 5: Solve for x
    x = 94,882,069,228.86/254,437.80
  6. Step 6: Final answer
    x = 372,908.70

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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.