Home / 313,139.44-432,439.20-216,590.56

Finding the Fourth Proportional to 313,139.44, 432,439.20 and 216,590.56

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Solution

The fourth proportional to 313,139.44, 432,439.20 and 216,590.56 is: 299,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,139.44 : 432,439.20 = 216,590.56 : x
  2. Step 2: Convert to fraction form
    313,139.44/432,439.20 = 216,590.56/x
  3. Step 3: Cross multiply
    313,139.44x = 432,439.20 × 216,590.56
  4. Step 4: Simplify right side
    313,139.44x = 93,662,248,493.95
  5. Step 5: Solve for x
    x = 93,662,248,493.95/313,139.44
  6. Step 6: Final answer
    x = 299,107.16

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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.