Home / 261,621.72-360,994.52-154,177.16

Finding the Fourth Proportional to 261,621.72, 360,994.52 and 154,177.16

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Solution

The fourth proportional to 261,621.72, 360,994.52 and 154,177.16 is: 212,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,621.72 : 360,994.52 = 154,177.16 : x
  2. Step 2: Convert to fraction form
    261,621.72/360,994.52 = 154,177.16/x
  3. Step 3: Cross multiply
    261,621.72x = 360,994.52 × 154,177.16
  4. Step 4: Simplify right side
    261,621.72x = 55,657,109,869.16
  5. Step 5: Solve for x
    x = 55,657,109,869.16/261,621.72
  6. Step 6: Final answer
    x = 212,738.87

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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.