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Finding the Fourth Proportional to 342,952.98, 473,270 and 189,990.85

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Solution

The fourth proportional to 342,952.98, 473,270 and 189,990.85 is: 262,184.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,952.98 : 473,270 = 189,990.85 : x
  2. Step 2: Convert to fraction form
    342,952.98/473,270 = 189,990.85/x
  3. Step 3: Cross multiply
    342,952.98x = 473,270 × 189,990.85
  4. Step 4: Simplify right side
    342,952.98x = 89,916,969,579.50
  5. Step 5: Solve for x
    x = 89,916,969,579.50/342,952.98
  6. Step 6: Final answer
    x = 262,184.54

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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.