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Finding the Fourth Proportional to 208,025.70, 312,038.55 and 181,781.70

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Solution

The fourth proportional to 208,025.70, 312,038.55 and 181,781.70 is: 272,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,025.70 : 312,038.55 = 181,781.70 : x
  2. Step 2: Convert to fraction form
    208,025.70/312,038.55 = 181,781.70/x
  3. Step 3: Cross multiply
    208,025.70x = 312,038.55 × 181,781.70
  4. Step 4: Simplify right side
    208,025.70x = 56,722,898,084.54
  5. Step 5: Solve for x
    x = 56,722,898,084.54/208,025.70
  6. Step 6: Final answer
    x = 272,672.55

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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.