Home / 311,966.46-430,582.50-202,881.06

Finding the Fourth Proportional to 311,966.46, 430,582.50 and 202,881.06

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Solution

The fourth proportional to 311,966.46, 430,582.50 and 202,881.06 is: 280,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,966.46 : 430,582.50 = 202,881.06 : x
  2. Step 2: Convert to fraction form
    311,966.46/430,582.50 = 202,881.06/x
  3. Step 3: Cross multiply
    311,966.46x = 430,582.50 × 202,881.06
  4. Step 4: Simplify right side
    311,966.46x = 87,357,034,017.45
  5. Step 5: Solve for x
    x = 87,357,034,017.45/311,966.46
  6. Step 6: Final answer
    x = 280,020.60

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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.