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Finding the Fourth Proportional to 179,878.16, 270,123.42 and 172,354.88

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Solution

The fourth proportional to 179,878.16, 270,123.42 and 172,354.88 is: 258,825.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,878.16 : 270,123.42 = 172,354.88 : x
  2. Step 2: Convert to fraction form
    179,878.16/270,123.42 = 172,354.88/x
  3. Step 3: Cross multiply
    179,878.16x = 270,123.42 × 172,354.88
  4. Step 4: Simplify right side
    179,878.16x = 46,557,089,639.29
  5. Step 5: Solve for x
    x = 46,557,089,639.29/179,878.16
  6. Step 6: Final answer
    x = 258,825.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.