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Finding the Fourth Proportional to 209,363.52, 288,915.48 and 118,727.76

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Solution

The fourth proportional to 209,363.52, 288,915.48 and 118,727.76 is: 163,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,363.52 : 288,915.48 = 118,727.76 : x
  2. Step 2: Convert to fraction form
    209,363.52/288,915.48 = 118,727.76/x
  3. Step 3: Cross multiply
    209,363.52x = 288,915.48 × 118,727.76
  4. Step 4: Simplify right side
    209,363.52x = 34,302,287,769.72
  5. Step 5: Solve for x
    x = 34,302,287,769.72/209,363.52
  6. Step 6: Final answer
    x = 163,840.81

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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.