Home / 331,621.76-457,312.89-210,552.86

Finding the Fourth Proportional to 331,621.76, 457,312.89 and 210,552.86

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Solution

The fourth proportional to 331,621.76, 457,312.89 and 210,552.86 is: 290,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,621.76 : 457,312.89 = 210,552.86 : x
  2. Step 2: Convert to fraction form
    331,621.76/457,312.89 = 210,552.86/x
  3. Step 3: Cross multiply
    331,621.76x = 457,312.89 × 210,552.86
  4. Step 4: Simplify right side
    331,621.76x = 96,288,534,617.80
  5. Step 5: Solve for x
    x = 96,288,534,617.80/331,621.76
  6. Step 6: Final answer
    x = 290,356.51

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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.