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Finding the Fourth Proportional to 438,803.28, 658,230.42 and 123,284.82

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Solution

The fourth proportional to 438,803.28, 658,230.42 and 123,284.82 is: 184,934.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,803.28 : 658,230.42 = 123,284.82 : x
  2. Step 2: Convert to fraction form
    438,803.28/658,230.42 = 123,284.82/x
  3. Step 3: Cross multiply
    438,803.28x = 658,230.42 × 123,284.82
  4. Step 4: Simplify right side
    438,803.28x = 81,149,818,848.22
  5. Step 5: Solve for x
    x = 81,149,818,848.22/438,803.28
  6. Step 6: Final answer
    x = 184,934.39

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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.