Home / 316,005.59-436,087.63-172,765.60

Finding the Fourth Proportional to 316,005.59, 436,087.63 and 172,765.60

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Solution

The fourth proportional to 316,005.59, 436,087.63 and 172,765.60 is: 238,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,005.59 : 436,087.63 = 172,765.60 : x
  2. Step 2: Convert to fraction form
    316,005.59/436,087.63 = 172,765.60/x
  3. Step 3: Cross multiply
    316,005.59x = 436,087.63 × 172,765.60
  4. Step 4: Simplify right side
    316,005.59x = 75,340,941,049.53
  5. Step 5: Solve for x
    x = 75,340,941,049.53/316,005.59
  6. Step 6: Final answer
    x = 238,416.48

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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.