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Finding the Fourth Proportional to 315,656, 435,587.52 and 179,723.12

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Solution

The fourth proportional to 315,656, 435,587.52 and 179,723.12 is: 248,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,656 : 435,587.52 = 179,723.12 : x
  2. Step 2: Convert to fraction form
    315,656/435,587.52 = 179,723.12/x
  3. Step 3: Cross multiply
    315,656x = 435,587.52 × 179,723.12
  4. Step 4: Simplify right side
    315,656x = 78,285,148,127.46
  5. Step 5: Solve for x
    x = 78,285,148,127.46/315,656
  6. Step 6: Final answer
    x = 248,007.79

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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.