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Finding the Fourth Proportional to 342,319.95, 472,365.18 and 189,333.83

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Solution

The fourth proportional to 342,319.95, 472,365.18 and 189,333.83 is: 261,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,319.95 : 472,365.18 = 189,333.83 : x
  2. Step 2: Convert to fraction form
    342,319.95/472,365.18 = 189,333.83/x
  3. Step 3: Cross multiply
    342,319.95x = 472,365.18 × 189,333.83
  4. Step 4: Simplify right side
    342,319.95x = 89,434,708,688.04
  5. Step 5: Solve for x
    x = 89,434,708,688.04/342,319.95
  6. Step 6: Final answer
    x = 261,260.58

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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.