Home / 311,929.26-430,463.40-168,690.30

Finding the Fourth Proportional to 311,929.26, 430,463.40 and 168,690.30

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Solution

The fourth proportional to 311,929.26, 430,463.40 and 168,690.30 is: 232,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,929.26 : 430,463.40 = 168,690.30 : x
  2. Step 2: Convert to fraction form
    311,929.26/430,463.40 = 168,690.30/x
  3. Step 3: Cross multiply
    311,929.26x = 430,463.40 × 168,690.30
  4. Step 4: Simplify right side
    311,929.26x = 72,615,000,085.02
  5. Step 5: Solve for x
    x = 72,615,000,085.02/311,929.26
  6. Step 6: Final answer
    x = 232,793.17

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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.