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Finding the Fourth Proportional to 261,804, 392,706 and 64,812

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Solution

The fourth proportional to 261,804, 392,706 and 64,812 is: 97,218

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,804 : 392,706 = 64,812 : x
  2. Step 2: Convert to fraction form
    261,804/392,706 = 64,812/x
  3. Step 3: Cross multiply
    261,804x = 392,706 × 64,812
  4. Step 4: Simplify right side
    261,804x = 25,452,061,272
  5. Step 5: Solve for x
    x = 25,452,061,272/261,804
  6. Step 6: Final answer
    x = 97,218

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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.