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Finding the Fourth Proportional to 350,057.60, 524,740.80 and 172,419.20

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Solution

The fourth proportional to 350,057.60, 524,740.80 and 172,419.20 is: 258,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,057.60 : 524,740.80 = 172,419.20 : x
  2. Step 2: Convert to fraction form
    350,057.60/524,740.80 = 172,419.20/x
  3. Step 3: Cross multiply
    350,057.60x = 524,740.80 × 172,419.20
  4. Step 4: Simplify right side
    350,057.60x = 90,475,388,943.36
  5. Step 5: Solve for x
    x = 90,475,388,943.36/350,057.60
  6. Step 6: Final answer
    x = 258,458.58

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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.