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Finding the Fourth Proportional to 342,275.89, 472,357.35 and 189,313.46

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Solution

The fourth proportional to 342,275.89, 472,357.35 and 189,313.46 is: 261,261.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,275.89 : 472,357.35 = 189,313.46 : x
  2. Step 2: Convert to fraction form
    342,275.89/472,357.35 = 189,313.46/x
  3. Step 3: Cross multiply
    342,275.89x = 472,357.35 × 189,313.46
  4. Step 4: Simplify right side
    342,275.89x = 89,423,604,284.93
  5. Step 5: Solve for x
    x = 89,423,604,284.93/342,275.89
  6. Step 6: Final answer
    x = 261,261.77

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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.