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Finding the Fourth Proportional to 315,048.65, 434,792.95 and 179,125.25

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Solution

The fourth proportional to 315,048.65, 434,792.95 and 179,125.25 is: 247,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,048.65 : 434,792.95 = 179,125.25 : x
  2. Step 2: Convert to fraction form
    315,048.65/434,792.95 = 179,125.25/x
  3. Step 3: Cross multiply
    315,048.65x = 434,792.95 × 179,125.25
  4. Step 4: Simplify right side
    315,048.65x = 77,882,393,245.21
  5. Step 5: Solve for x
    x = 77,882,393,245.21/315,048.65
  6. Step 6: Final answer
    x = 247,207.52

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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.