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Finding the Fourth Proportional to 342,169.02, 472,192.35 and 187,120.38

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Solution

The fourth proportional to 342,169.02, 472,192.35 and 187,120.38 is: 258,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,169.02 : 472,192.35 = 187,120.38 : x
  2. Step 2: Convert to fraction form
    342,169.02/472,192.35 = 187,120.38/x
  3. Step 3: Cross multiply
    342,169.02x = 472,192.35 × 187,120.38
  4. Step 4: Simplify right side
    342,169.02x = 88,356,811,965.09
  5. Step 5: Solve for x
    x = 88,356,811,965.09/342,169.02
  6. Step 6: Final answer
    x = 258,225.63

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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.