Home / 312,869.46-431,768.36-176,923.74

Finding the Fourth Proportional to 312,869.46, 431,768.36 and 176,923.74

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Solution

The fourth proportional to 312,869.46, 431,768.36 and 176,923.74 is: 244,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,869.46 : 431,768.36 = 176,923.74 : x
  2. Step 2: Convert to fraction form
    312,869.46/431,768.36 = 176,923.74/x
  3. Step 3: Cross multiply
    312,869.46x = 431,768.36 × 176,923.74
  4. Step 4: Simplify right side
    312,869.46x = 76,390,072,180.25
  5. Step 5: Solve for x
    x = 76,390,072,180.25/312,869.46
  6. Step 6: Final answer
    x = 244,159.57

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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.