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Finding the Fourth Proportional to 319,244.20, 478,866.30 and 177,526.60

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Solution

The fourth proportional to 319,244.20, 478,866.30 and 177,526.60 is: 266,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,244.20 : 478,866.30 = 177,526.60 : x
  2. Step 2: Convert to fraction form
    319,244.20/478,866.30 = 177,526.60/x
  3. Step 3: Cross multiply
    319,244.20x = 478,866.30 × 177,526.60
  4. Step 4: Simplify right side
    319,244.20x = 85,011,506,093.58
  5. Step 5: Solve for x
    x = 85,011,506,093.58/319,244.20
  6. Step 6: Final answer
    x = 266,289.90

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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.