Home / 311,895.31-430,415.01-175,928.83

Finding the Fourth Proportional to 311,895.31, 430,415.01 and 175,928.83

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Solution

The fourth proportional to 311,895.31, 430,415.01 and 175,928.83 is: 242,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,895.31 : 430,415.01 = 175,928.83 : x
  2. Step 2: Convert to fraction form
    311,895.31/430,415.01 = 175,928.83/x
  3. Step 3: Cross multiply
    311,895.31x = 430,415.01 × 175,928.83
  4. Step 4: Simplify right side
    311,895.31x = 75,722,409,123.74
  5. Step 5: Solve for x
    x = 75,722,409,123.74/311,895.31
  6. Step 6: Final answer
    x = 242,781.49

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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.