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Finding the Fourth Proportional to 206,688.30, 310,032.45 and 73,718.70

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Solution

The fourth proportional to 206,688.30, 310,032.45 and 73,718.70 is: 110,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688.30 : 310,032.45 = 73,718.70 : x
  2. Step 2: Convert to fraction form
    206,688.30/310,032.45 = 73,718.70/x
  3. Step 3: Cross multiply
    206,688.30x = 310,032.45 × 73,718.70
  4. Step 4: Simplify right side
    206,688.30x = 22,855,189,171.82
  5. Step 5: Solve for x
    x = 22,855,189,171.82/206,688.30
  6. Step 6: Final answer
    x = 110,578.05

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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.