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Finding the Fourth Proportional to 490,029.60, 735,044.40 and 157,639.20

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Solution

The fourth proportional to 490,029.60, 735,044.40 and 157,639.20 is: 236,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,029.60 : 735,044.40 = 157,639.20 : x
  2. Step 2: Convert to fraction form
    490,029.60/735,044.40 = 157,639.20/x
  3. Step 3: Cross multiply
    490,029.60x = 735,044.40 × 157,639.20
  4. Step 4: Simplify right side
    490,029.60x = 115,871,811,180.48
  5. Step 5: Solve for x
    x = 115,871,811,180.48/490,029.60
  6. Step 6: Final answer
    x = 236,458.80

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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.