Home / 311,932.32-430,470-168,695.16

Finding the Fourth Proportional to 311,932.32, 430,470 and 168,695.16

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Solution

The fourth proportional to 311,932.32, 430,470 and 168,695.16 is: 232,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,932.32 : 430,470 = 168,695.16 : x
  2. Step 2: Convert to fraction form
    311,932.32/430,470 = 168,695.16/x
  3. Step 3: Cross multiply
    311,932.32x = 430,470 × 168,695.16
  4. Step 4: Simplify right side
    311,932.32x = 72,618,205,525.20
  5. Step 5: Solve for x
    x = 72,618,205,525.20/311,932.32
  6. Step 6: Final answer
    x = 232,801.16

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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.