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Finding the Fourth Proportional to 209,240.79, 288,650.79 and 124,297.71

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Solution

The fourth proportional to 209,240.79, 288,650.79 and 124,297.71 is: 171,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,240.79 : 288,650.79 = 124,297.71 : x
  2. Step 2: Convert to fraction form
    209,240.79/288,650.79 = 124,297.71/x
  3. Step 3: Cross multiply
    209,240.79x = 288,650.79 × 124,297.71
  4. Step 4: Simplify right side
    209,240.79x = 35,878,632,186.69
  5. Step 5: Solve for x
    x = 35,878,632,186.69/209,240.79
  6. Step 6: Final answer
    x = 171,470.54

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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.