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Finding the Fourth Proportional to 315,868, 473,802 and 82,396

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Solution

The fourth proportional to 315,868, 473,802 and 82,396 is: 123,594

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,868 : 473,802 = 82,396 : x
  2. Step 2: Convert to fraction form
    315,868/473,802 = 82,396/x
  3. Step 3: Cross multiply
    315,868x = 473,802 × 82,396
  4. Step 4: Simplify right side
    315,868x = 39,039,389,592
  5. Step 5: Solve for x
    x = 39,039,389,592/315,868
  6. Step 6: Final answer
    x = 123,594

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.