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Finding the Fourth Proportional to 485,176.60, 727,764.90 and 248,980.60

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Solution

The fourth proportional to 485,176.60, 727,764.90 and 248,980.60 is: 373,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,176.60 : 727,764.90 = 248,980.60 : x
  2. Step 2: Convert to fraction form
    485,176.60/727,764.90 = 248,980.60/x
  3. Step 3: Cross multiply
    485,176.60x = 727,764.90 × 248,980.60
  4. Step 4: Simplify right side
    485,176.60x = 181,199,341,460.94
  5. Step 5: Solve for x
    x = 181,199,341,460.94/485,176.60
  6. Step 6: Final answer
    x = 373,470.90

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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.