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Finding the Fourth Proportional to 350,037.60, 524,710.80 and 172,399.20

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Solution

The fourth proportional to 350,037.60, 524,710.80 and 172,399.20 is: 258,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,037.60 : 524,710.80 = 172,399.20 : x
  2. Step 2: Convert to fraction form
    350,037.60/524,710.80 = 172,399.20/x
  3. Step 3: Cross multiply
    350,037.60x = 524,710.80 × 172,399.20
  4. Step 4: Simplify right side
    350,037.60x = 90,459,722,151.36
  5. Step 5: Solve for x
    x = 90,459,722,151.36/350,037.60
  6. Step 6: Final answer
    x = 258,428.59

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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.