Home / 312,180.72-430,828.86-176,237.70

Finding the Fourth Proportional to 312,180.72, 430,828.86 and 176,237.70

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Solution

The fourth proportional to 312,180.72, 430,828.86 and 176,237.70 is: 243,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,180.72 : 430,828.86 = 176,237.70 : x
  2. Step 2: Convert to fraction form
    312,180.72/430,828.86 = 176,237.70/x
  3. Step 3: Cross multiply
    312,180.72x = 430,828.86 × 176,237.70
  4. Step 4: Simplify right side
    312,180.72x = 75,928,287,380.02
  5. Step 5: Solve for x
    x = 75,928,287,380.02/312,180.72
  6. Step 6: Final answer
    x = 243,219.02

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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.