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Finding the Fourth Proportional to 292,186.72, 438,418.85 and 202,367.65

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Solution

The fourth proportional to 292,186.72, 438,418.85 and 202,367.65 is: 303,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,186.72 : 438,418.85 = 202,367.65 : x
  2. Step 2: Convert to fraction form
    292,186.72/438,418.85 = 202,367.65/x
  3. Step 3: Cross multiply
    292,186.72x = 438,418.85 × 202,367.65
  4. Step 4: Simplify right side
    292,186.72x = 88,721,792,390.20
  5. Step 5: Solve for x
    x = 88,721,792,390.20/292,186.72
  6. Step 6: Final answer
    x = 303,647.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.