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Finding the Fourth Proportional to 207,263, 310,902.60 and 65,205.20

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Solution

The fourth proportional to 207,263, 310,902.60 and 65,205.20 is: 97,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,263 : 310,902.60 = 65,205.20 : x
  2. Step 2: Convert to fraction form
    207,263/310,902.60 = 65,205.20/x
  3. Step 3: Cross multiply
    207,263x = 310,902.60 × 65,205.20
  4. Step 4: Simplify right side
    207,263x = 20,272,466,213.52
  5. Step 5: Solve for x
    x = 20,272,466,213.52/207,263
  6. Step 6: Final answer
    x = 97,810.35

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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.