Home / 311,984.30-430,538.36-168,744.35

Finding the Fourth Proportional to 311,984.30, 430,538.36 and 168,744.35

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Solution

The fourth proportional to 311,984.30, 430,538.36 and 168,744.35 is: 232,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,984.30 : 430,538.36 = 168,744.35 : x
  2. Step 2: Convert to fraction form
    311,984.30/430,538.36 = 168,744.35/x
  3. Step 3: Cross multiply
    311,984.30x = 430,538.36 × 168,744.35
  4. Step 4: Simplify right side
    311,984.30x = 72,650,913,133.71
  5. Step 5: Solve for x
    x = 72,650,913,133.71/311,984.30
  6. Step 6: Final answer
    x = 232,867.21

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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.