Home / 372,014.40-513,381.92-219,059.20

Finding the Fourth Proportional to 372,014.40, 513,381.92 and 219,059.20

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Solution

The fourth proportional to 372,014.40, 513,381.92 and 219,059.20 is: 302,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,014.40 : 513,381.92 = 219,059.20 : x
  2. Step 2: Convert to fraction form
    372,014.40/513,381.92 = 219,059.20/x
  3. Step 3: Cross multiply
    372,014.40x = 513,381.92 × 219,059.20
  4. Step 4: Simplify right side
    372,014.40x = 112,461,032,689.66
  5. Step 5: Solve for x
    x = 112,461,032,689.66/372,014.40
  6. Step 6: Final answer
    x = 302,302.90

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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.