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Finding the Fourth Proportional to 208,339.61, 312,444.99 and 75,202.94

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Solution

The fourth proportional to 208,339.61, 312,444.99 and 75,202.94 is: 112,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,339.61 : 312,444.99 = 75,202.94 : x
  2. Step 2: Convert to fraction form
    208,339.61/312,444.99 = 75,202.94/x
  3. Step 3: Cross multiply
    208,339.61x = 312,444.99 × 75,202.94
  4. Step 4: Simplify right side
    208,339.61x = 23,496,781,836.27
  5. Step 5: Solve for x
    x = 23,496,781,836.27/208,339.61
  6. Step 6: Final answer
    x = 112,781.15

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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.