Home / 208,847.27-288,196.11-118,221.63

Finding the Fourth Proportional to 208,847.27, 288,196.11 and 118,221.63

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Solution

The fourth proportional to 208,847.27, 288,196.11 and 118,221.63 is: 163,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,847.27 : 288,196.11 = 118,221.63 : x
  2. Step 2: Convert to fraction form
    208,847.27/288,196.11 = 118,221.63/x
  3. Step 3: Cross multiply
    208,847.27x = 288,196.11 × 118,221.63
  4. Step 4: Simplify right side
    208,847.27x = 34,071,013,883.86
  5. Step 5: Solve for x
    x = 34,071,013,883.86/208,847.27
  6. Step 6: Final answer
    x = 163,138.42

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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.