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Finding the Fourth Proportional to 350,512.80, 525,769.20 and 243,607.20

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Solution

The fourth proportional to 350,512.80, 525,769.20 and 243,607.20 is: 365,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,512.80 : 525,769.20 = 243,607.20 : x
  2. Step 2: Convert to fraction form
    350,512.80/525,769.20 = 243,607.20/x
  3. Step 3: Cross multiply
    350,512.80x = 525,769.20 × 243,607.20
  4. Step 4: Simplify right side
    350,512.80x = 128,081,162,658.24
  5. Step 5: Solve for x
    x = 128,081,162,658.24/350,512.80
  6. Step 6: Final answer
    x = 365,410.80

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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.