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Finding the Fourth Proportional to 315,908.16, 435,953.10 and 179,954.65

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Solution

The fourth proportional to 315,908.16, 435,953.10 and 179,954.65 is: 248,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,908.16 : 435,953.10 = 179,954.65 : x
  2. Step 2: Convert to fraction form
    315,908.16/435,953.10 = 179,954.65/x
  3. Step 3: Cross multiply
    315,908.16x = 435,953.10 × 179,954.65
  4. Step 4: Simplify right side
    315,908.16x = 78,451,787,526.92
  5. Step 5: Solve for x
    x = 78,451,787,526.92/315,908.16
  6. Step 6: Final answer
    x = 248,337.33

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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.