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Finding the Fourth Proportional to 438,234.60, 657,870.30 and 248,845.80

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Solution

The fourth proportional to 438,234.60, 657,870.30 and 248,845.80 is: 373,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,234.60 : 657,870.30 = 248,845.80 : x
  2. Step 2: Convert to fraction form
    438,234.60/657,870.30 = 248,845.80/x
  3. Step 3: Cross multiply
    438,234.60x = 657,870.30 × 248,845.80
  4. Step 4: Simplify right side
    438,234.60x = 163,708,261,099.74
  5. Step 5: Solve for x
    x = 163,708,261,099.74/438,234.60
  6. Step 6: Final answer
    x = 373,563.07

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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.