Home / 372,345.39-513,814.86-208,986.57

Finding the Fourth Proportional to 372,345.39, 513,814.86 and 208,986.57

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Solution

The fourth proportional to 372,345.39, 513,814.86 and 208,986.57 is: 288,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,345.39 : 513,814.86 = 208,986.57 : x
  2. Step 2: Convert to fraction form
    372,345.39/513,814.86 = 208,986.57/x
  3. Step 3: Cross multiply
    372,345.39x = 513,814.86 × 208,986.57
  4. Step 4: Simplify right side
    372,345.39x = 107,380,405,206.43
  5. Step 5: Solve for x
    x = 107,380,405,206.43/372,345.39
  6. Step 6: Final answer
    x = 288,389.24

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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.