Home / 349,319.10-481,920.38-220,215.10

Finding the Fourth Proportional to 349,319.10, 481,920.38 and 220,215.10

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Solution

The fourth proportional to 349,319.10, 481,920.38 and 220,215.10 is: 303,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,319.10 : 481,920.38 = 220,215.10 : x
  2. Step 2: Convert to fraction form
    349,319.10/481,920.38 = 220,215.10/x
  3. Step 3: Cross multiply
    349,319.10x = 481,920.38 × 220,215.10
  4. Step 4: Simplify right side
    349,319.10x = 106,126,144,673.74
  5. Step 5: Solve for x
    x = 106,126,144,673.74/349,319.10
  6. Step 6: Final answer
    x = 303,808.59

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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.