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Finding the Fourth Proportional to 369,745.82, 554,618.75 and 120,427.82

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Solution

The fourth proportional to 369,745.82, 554,618.75 and 120,427.82 is: 180,641.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,745.82 : 554,618.75 = 120,427.82 : x
  2. Step 2: Convert to fraction form
    369,745.82/554,618.75 = 120,427.82/x
  3. Step 3: Cross multiply
    369,745.82x = 554,618.75 × 120,427.82
  4. Step 4: Simplify right side
    369,745.82x = 66,791,523,618.39
  5. Step 5: Solve for x
    x = 66,791,523,618.39/369,745.82
  6. Step 6: Final answer
    x = 180,641.73

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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.