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Finding the Fourth Proportional to 208,270.59, 312,341.31 and 75,133.55

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Solution

The fourth proportional to 208,270.59, 312,341.31 and 75,133.55 is: 112,677.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270.59 : 312,341.31 = 75,133.55 : x
  2. Step 2: Convert to fraction form
    208,270.59/312,341.31 = 75,133.55/x
  3. Step 3: Cross multiply
    208,270.59x = 312,341.31 × 75,133.55
  4. Step 4: Simplify right side
    208,270.59x = 23,467,309,870.24
  5. Step 5: Solve for x
    x = 23,467,309,870.24/208,270.59
  6. Step 6: Final answer
    x = 112,677.02

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1.5x scale

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.