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Finding the Fourth Proportional to 325,387.38, 448,803.10 and 298,616.34

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Solution

The fourth proportional to 325,387.38, 448,803.10 and 298,616.34 is: 411,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,387.38 : 448,803.10 = 298,616.34 : x
  2. Step 2: Convert to fraction form
    325,387.38/448,803.10 = 298,616.34/x
  3. Step 3: Cross multiply
    325,387.38x = 448,803.10 × 298,616.34
  4. Step 4: Simplify right side
    325,387.38x = 134,019,939,102.65
  5. Step 5: Solve for x
    x = 134,019,939,102.65/325,387.38
  6. Step 6: Final answer
    x = 411,878.11

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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.