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Finding the Fourth Proportional to 251,415.60, 377,123.40 and 195,428.40

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Solution

The fourth proportional to 251,415.60, 377,123.40 and 195,428.40 is: 293,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,415.60 : 377,123.40 = 195,428.40 : x
  2. Step 2: Convert to fraction form
    251,415.60/377,123.40 = 195,428.40/x
  3. Step 3: Cross multiply
    251,415.60x = 377,123.40 × 195,428.40
  4. Step 4: Simplify right side
    251,415.60x = 73,700,622,664.56
  5. Step 5: Solve for x
    x = 73,700,622,664.56/251,415.60
  6. Step 6: Final answer
    x = 293,142.60

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1.5x scale

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.