Home / 372,240.32-513,676.10-219,284.78

Finding the Fourth Proportional to 372,240.32, 513,676.10 and 219,284.78

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Solution

The fourth proportional to 372,240.32, 513,676.10 and 219,284.78 is: 302,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,240.32 : 513,676.10 = 219,284.78 : x
  2. Step 2: Convert to fraction form
    372,240.32/513,676.10 = 219,284.78/x
  3. Step 3: Cross multiply
    372,240.32x = 513,676.10 × 219,284.78
  4. Step 4: Simplify right side
    372,240.32x = 112,641,350,579.76
  5. Step 5: Solve for x
    x = 112,641,350,579.76/372,240.32
  6. Step 6: Final answer
    x = 302,603.84

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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.