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Finding the Fourth Proportional to 298,457.60, 448,204.80 and 158,489.60

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Solution

The fourth proportional to 298,457.60, 448,204.80 and 158,489.60 is: 238,009.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,457.60 : 448,204.80 = 158,489.60 : x
  2. Step 2: Convert to fraction form
    298,457.60/448,204.80 = 158,489.60/x
  3. Step 3: Cross multiply
    298,457.60x = 448,204.80 × 158,489.60
  4. Step 4: Simplify right side
    298,457.60x = 71,035,799,470.08
  5. Step 5: Solve for x
    x = 71,035,799,470.08/298,457.60
  6. Step 6: Final answer
    x = 238,009.69

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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.