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Finding the Fourth Proportional to 342,294.12, 472,366.80 and 191,391.12

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Solution

The fourth proportional to 342,294.12, 472,366.80 and 191,391.12 is: 264,120.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,294.12 : 472,366.80 = 191,391.12 : x
  2. Step 2: Convert to fraction form
    342,294.12/472,366.80 = 191,391.12/x
  3. Step 3: Cross multiply
    342,294.12x = 472,366.80 × 191,391.12
  4. Step 4: Simplify right side
    342,294.12x = 90,406,810,902.82
  5. Step 5: Solve for x
    x = 90,406,810,902.82/342,294.12
  6. Step 6: Final answer
    x = 264,120.26

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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.