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Finding the Fourth Proportional to 638,062.84, 957,260.40 and 238,734.84

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Solution

The fourth proportional to 638,062.84, 957,260.40 and 238,734.84 is: 358,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,062.84 : 957,260.40 = 238,734.84 : x
  2. Step 2: Convert to fraction form
    638,062.84/957,260.40 = 238,734.84/x
  3. Step 3: Cross multiply
    638,062.84x = 957,260.40 × 238,734.84
  4. Step 4: Simplify right side
    638,062.84x = 228,531,408,432.34
  5. Step 5: Solve for x
    x = 228,531,408,432.34/638,062.84
  6. Step 6: Final answer
    x = 358,164.42

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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.