Home / 372,150.16-513,555.20-211,019.56

Finding the Fourth Proportional to 372,150.16, 513,555.20 and 211,019.56

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Solution

The fourth proportional to 372,150.16, 513,555.20 and 211,019.56 is: 291,200.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,150.16 : 513,555.20 = 211,019.56 : x
  2. Step 2: Convert to fraction form
    372,150.16/513,555.20 = 211,019.56/x
  3. Step 3: Cross multiply
    372,150.16x = 513,555.20 × 211,019.56
  4. Step 4: Simplify right side
    372,150.16x = 108,370,192,339.71
  5. Step 5: Solve for x
    x = 108,370,192,339.71/372,150.16
  6. Step 6: Final answer
    x = 291,200.18

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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.