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Finding the Fourth Proportional to 209,361.96, 288,947.52 and 118,750.77

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Solution

The fourth proportional to 209,361.96, 288,947.52 and 118,750.77 is: 163,891.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,361.96 : 288,947.52 = 118,750.77 : x
  2. Step 2: Convert to fraction form
    209,361.96/288,947.52 = 118,750.77/x
  3. Step 3: Cross multiply
    209,361.96x = 288,947.52 × 118,750.77
  4. Step 4: Simplify right side
    209,361.96x = 34,312,740,489.59
  5. Step 5: Solve for x
    x = 34,312,740,489.59/209,361.96
  6. Step 6: Final answer
    x = 163,891.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.