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Finding the Fourth Proportional to 319,208.88, 477,968.60 and 192,680.00

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Solution

The fourth proportional to 319,208.88, 477,968.60 and 192,680.00 is: 288,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,208.88 : 477,968.60 = 192,680.00 : x
  2. Step 2: Convert to fraction form
    319,208.88/477,968.60 = 192,680.00/x
  3. Step 3: Cross multiply
    319,208.88x = 477,968.60 × 192,680.00
  4. Step 4: Simplify right side
    319,208.88x = 92,094,986,494.76
  5. Step 5: Solve for x
    x = 92,094,986,494.76/319,208.88
  6. Step 6: Final answer
    x = 288,510.10

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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.