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Finding the Fourth Proportional to 350,069.60, 524,758.80 and 172,431.20

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Solution

The fourth proportional to 350,069.60, 524,758.80 and 172,431.20 is: 258,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,069.60 : 524,758.80 = 172,431.20 : x
  2. Step 2: Convert to fraction form
    350,069.60/524,758.80 = 172,431.20/x
  3. Step 3: Cross multiply
    350,069.60x = 524,758.80 × 172,431.20
  4. Step 4: Simplify right side
    350,069.60x = 90,484,789,594.56
  5. Step 5: Solve for x
    x = 90,484,789,594.56/350,069.60
  6. Step 6: Final answer
    x = 258,476.57

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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.