Home / 209,214.48-288,721.62-113,727.66

Finding the Fourth Proportional to 209,214.48, 288,721.62 and 113,727.66

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Solution

The fourth proportional to 209,214.48, 288,721.62 and 113,727.66 is: 156,947.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,214.48 : 288,721.62 = 113,727.66 : x
  2. Step 2: Convert to fraction form
    209,214.48/288,721.62 = 113,727.66/x
  3. Step 3: Cross multiply
    209,214.48x = 288,721.62 × 113,727.66
  4. Step 4: Simplify right side
    209,214.48x = 32,835,634,234.01
  5. Step 5: Solve for x
    x = 32,835,634,234.01/209,214.48
  6. Step 6: Final answer
    x = 156,947.24

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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.