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Finding the Fourth Proportional to 199,123.60, 298,685.40 and 197,957.20

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Solution

The fourth proportional to 199,123.60, 298,685.40 and 197,957.20 is: 296,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,123.60 : 298,685.40 = 197,957.20 : x
  2. Step 2: Convert to fraction form
    199,123.60/298,685.40 = 197,957.20/x
  3. Step 3: Cross multiply
    199,123.60x = 298,685.40 × 197,957.20
  4. Step 4: Simplify right side
    199,123.60x = 59,126,925,464.88
  5. Step 5: Solve for x
    x = 59,126,925,464.88/199,123.60
  6. Step 6: Final answer
    x = 296,935.80

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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.