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Finding the Fourth Proportional to 298,679.48, 448,041.10 and 118,835.18

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Solution

The fourth proportional to 298,679.48, 448,041.10 and 118,835.18 is: 178,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,679.48 : 448,041.10 = 118,835.18 : x
  2. Step 2: Convert to fraction form
    298,679.48/448,041.10 = 118,835.18/x
  3. Step 3: Cross multiply
    298,679.48x = 448,041.10 × 118,835.18
  4. Step 4: Simplify right side
    298,679.48x = 53,243,044,765.90
  5. Step 5: Solve for x
    x = 53,243,044,765.90/298,679.48
  6. Step 6: Final answer
    x = 178,261.48

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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.