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Finding the Fourth Proportional to 342,347.04, 472,430.08 and 189,381.24

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Solution

The fourth proportional to 342,347.04, 472,430.08 and 189,381.24 is: 261,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,347.04 : 472,430.08 = 189,381.24 : x
  2. Step 2: Convert to fraction form
    342,347.04/472,430.08 = 189,381.24/x
  3. Step 3: Cross multiply
    342,347.04x = 472,430.08 × 189,381.24
  4. Step 4: Simplify right side
    342,347.04x = 89,469,394,363.70
  5. Step 5: Solve for x
    x = 89,469,394,363.70/342,347.04
  6. Step 6: Final answer
    x = 261,341.22

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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.