Home / 372,346.39-513,816.24-208,987.57

Finding the Fourth Proportional to 372,346.39, 513,816.24 and 208,987.57

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Solution

The fourth proportional to 372,346.39, 513,816.24 and 208,987.57 is: 288,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,346.39 : 513,816.24 = 208,987.57 : x
  2. Step 2: Convert to fraction form
    372,346.39/513,816.24 = 208,987.57/x
  3. Step 3: Cross multiply
    372,346.39x = 513,816.24 × 208,987.57
  4. Step 4: Simplify right side
    372,346.39x = 107,381,207,424.14
  5. Step 5: Solve for x
    x = 107,381,207,424.14/372,346.39
  6. Step 6: Final answer
    x = 288,390.62

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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.