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Finding the Fourth Proportional to 353,532.48, 487,860.30 and 192,388.20

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Solution

The fourth proportional to 353,532.48, 487,860.30 and 192,388.20 is: 265,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,532.48 : 487,860.30 = 192,388.20 : x
  2. Step 2: Convert to fraction form
    353,532.48/487,860.30 = 192,388.20/x
  3. Step 3: Cross multiply
    353,532.48x = 487,860.30 × 192,388.20
  4. Step 4: Simplify right side
    353,532.48x = 93,858,564,968.46
  5. Step 5: Solve for x
    x = 93,858,564,968.46/353,532.48
  6. Step 6: Final answer
    x = 265,487.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.