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Finding the Fourth Proportional to 288,305.65, 397,859.42 and 157,483.41

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Solution

The fourth proportional to 288,305.65, 397,859.42 and 157,483.41 is: 217,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,305.65 : 397,859.42 = 157,483.41 : x
  2. Step 2: Convert to fraction form
    288,305.65/397,859.42 = 157,483.41/x
  3. Step 3: Cross multiply
    288,305.65x = 397,859.42 × 157,483.41
  4. Step 4: Simplify right side
    288,305.65x = 62,656,258,162.22
  5. Step 5: Solve for x
    x = 62,656,258,162.22/288,305.65
  6. Step 6: Final answer
    x = 217,325.81

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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.