Home / 372,235.32-513,669.20-219,279.78

Finding the Fourth Proportional to 372,235.32, 513,669.20 and 219,279.78

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Solution

The fourth proportional to 372,235.32, 513,669.20 and 219,279.78 is: 302,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,235.32 : 513,669.20 = 219,279.78 : x
  2. Step 2: Convert to fraction form
    372,235.32/513,669.20 = 219,279.78/x
  3. Step 3: Cross multiply
    372,235.32x = 513,669.20 × 219,279.78
  4. Step 4: Simplify right side
    372,235.32x = 112,637,268,072.38
  5. Step 5: Solve for x
    x = 112,637,268,072.38/372,235.32
  6. Step 6: Final answer
    x = 302,596.94

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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.