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Finding the Fourth Proportional to 342,323.70, 472,370.34 and 189,337.59

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Solution

The fourth proportional to 342,323.70, 472,370.34 and 189,337.59 is: 261,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,323.70 : 472,370.34 = 189,337.59 : x
  2. Step 2: Convert to fraction form
    342,323.70/472,370.34 = 189,337.59/x
  3. Step 3: Cross multiply
    342,323.70x = 472,370.34 × 189,337.59
  4. Step 4: Simplify right side
    342,323.70x = 89,437,461,763.08
  5. Step 5: Solve for x
    x = 89,437,461,763.08/342,323.70
  6. Step 6: Final answer
    x = 261,265.76

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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.