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Finding the Fourth Proportional to 315,618, 435,565.80 and 181,482

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Solution

The fourth proportional to 315,618, 435,565.80 and 181,482 is: 250,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,618 : 435,565.80 = 181,482 : x
  2. Step 2: Convert to fraction form
    315,618/435,565.80 = 181,482/x
  3. Step 3: Cross multiply
    315,618x = 435,565.80 × 181,482
  4. Step 4: Simplify right side
    315,618x = 79,047,352,515.60
  5. Step 5: Solve for x
    x = 79,047,352,515.60/315,618
  6. Step 6: Final answer
    x = 250,452.61

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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.