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Finding the Fourth Proportional to 342,908.13, 473,217.02 and 189,948.66

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Solution

The fourth proportional to 342,908.13, 473,217.02 and 189,948.66 is: 262,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,908.13 : 473,217.02 = 189,948.66 : x
  2. Step 2: Convert to fraction form
    342,908.13/473,217.02 = 189,948.66/x
  3. Step 3: Cross multiply
    342,908.13x = 473,217.02 × 189,948.66
  4. Step 4: Simplify right side
    342,908.13x = 89,886,939,313.06
  5. Step 5: Solve for x
    x = 89,886,939,313.06/342,908.13
  6. Step 6: Final answer
    x = 262,131.26

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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.