Home / 316,202.45-436,359.54-172,962.15

Finding the Fourth Proportional to 316,202.45, 436,359.54 and 172,962.15

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Solution

The fourth proportional to 316,202.45, 436,359.54 and 172,962.15 is: 238,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,202.45 : 436,359.54 = 172,962.15 : x
  2. Step 2: Convert to fraction form
    316,202.45/436,359.54 = 172,962.15/x
  3. Step 3: Cross multiply
    316,202.45x = 436,359.54 × 172,962.15
  4. Step 4: Simplify right side
    316,202.45x = 75,473,683,223.67
  5. Step 5: Solve for x
    x = 75,473,683,223.67/316,202.45
  6. Step 6: Final answer
    x = 238,687.85

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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.