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Finding the Fourth Proportional to 236,487.60, 354,731.40 and 218,602.80

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Solution

The fourth proportional to 236,487.60, 354,731.40 and 218,602.80 is: 327,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,487.60 : 354,731.40 = 218,602.80 : x
  2. Step 2: Convert to fraction form
    236,487.60/354,731.40 = 218,602.80/x
  3. Step 3: Cross multiply
    236,487.60x = 354,731.40 × 218,602.80
  4. Step 4: Simplify right side
    236,487.60x = 77,545,277,287.92
  5. Step 5: Solve for x
    x = 77,545,277,287.92/236,487.60
  6. Step 6: Final answer
    x = 327,904.20

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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.