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Finding the Fourth Proportional to 638,251.50, 957,541.32 and 238,898.01

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Solution

The fourth proportional to 638,251.50, 957,541.32 and 238,898.01 is: 358,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,251.50 : 957,541.32 = 238,898.01 : x
  2. Step 2: Convert to fraction form
    638,251.50/957,541.32 = 238,898.01/x
  3. Step 3: Cross multiply
    638,251.50x = 957,541.32 × 238,898.01
  4. Step 4: Simplify right side
    638,251.50x = 228,754,715,840.77
  5. Step 5: Solve for x
    x = 228,754,715,840.77/638,251.50
  6. Step 6: Final answer
    x = 358,408.43

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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.