Home / 312,116.85-430,722.75-176,156.52

Finding the Fourth Proportional to 312,116.85, 430,722.75 and 176,156.52

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Solution

The fourth proportional to 312,116.85, 430,722.75 and 176,156.52 is: 243,096.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,116.85 : 430,722.75 = 176,156.52 : x
  2. Step 2: Convert to fraction form
    312,116.85/430,722.75 = 176,156.52/x
  3. Step 3: Cross multiply
    312,116.85x = 430,722.75 × 176,156.52
  4. Step 4: Simplify right side
    312,116.85x = 75,874,620,724.83
  5. Step 5: Solve for x
    x = 75,874,620,724.83/312,116.85
  6. Step 6: Final answer
    x = 243,096.84

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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.