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Finding the Fourth Proportional to 342,444.98, 472,564.94 and 189,479.18

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Solution

The fourth proportional to 342,444.98, 472,564.94 and 189,479.18 is: 261,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,444.98 : 472,564.94 = 189,479.18 : x
  2. Step 2: Convert to fraction form
    342,444.98/472,564.94 = 189,479.18/x
  3. Step 3: Cross multiply
    342,444.98x = 472,564.94 × 189,479.18
  4. Step 4: Simplify right side
    342,444.98x = 89,541,217,327.95
  5. Step 5: Solve for x
    x = 89,541,217,327.95/342,444.98
  6. Step 6: Final answer
    x = 261,476.22

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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.