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Finding the Fourth Proportional to 350,047.60, 524,725.80 and 172,409.20

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Solution

The fourth proportional to 350,047.60, 524,725.80 and 172,409.20 is: 258,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,047.60 : 524,725.80 = 172,409.20 : x
  2. Step 2: Convert to fraction form
    350,047.60/524,725.80 = 172,409.20/x
  3. Step 3: Cross multiply
    350,047.60x = 524,725.80 × 172,409.20
  4. Step 4: Simplify right side
    350,047.60x = 90,467,555,397.36
  5. Step 5: Solve for x
    x = 90,467,555,397.36/350,047.60
  6. Step 6: Final answer
    x = 258,443.58

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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.