Home / 372,349.47-513,998.68-315,284.64

Finding the Fourth Proportional to 372,349.47, 513,998.68 and 315,284.64

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Solution

The fourth proportional to 372,349.47, 513,998.68 and 315,284.64 is: 435,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,349.47 : 513,998.68 = 315,284.64 : x
  2. Step 2: Convert to fraction form
    372,349.47/513,998.68 = 315,284.64/x
  3. Step 3: Cross multiply
    372,349.47x = 513,998.68 × 315,284.64
  4. Step 4: Simplify right side
    372,349.47x = 162,055,886,659.73
  5. Step 5: Solve for x
    x = 162,055,886,659.73/372,349.47
  6. Step 6: Final answer
    x = 435,225.23

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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.