Home / 316,943.46-475,432.50-80,288.19

Finding the Fourth Proportional to 316,943.46, 475,432.50 and 80,288.19

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Solution

The fourth proportional to 316,943.46, 475,432.50 and 80,288.19 is: 120,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,943.46 : 475,432.50 = 80,288.19 : x
  2. Step 2: Convert to fraction form
    316,943.46/475,432.50 = 80,288.19/x
  3. Step 3: Cross multiply
    316,943.46x = 475,432.50 × 80,288.19
  4. Step 4: Simplify right side
    316,943.46x = 38,171,614,892.18
  5. Step 5: Solve for x
    x = 38,171,614,892.18/316,943.46
  6. Step 6: Final answer
    x = 120,436.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.