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Finding the Fourth Proportional to 638,088.20, 957,150.86 and 238,652.76

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Solution

The fourth proportional to 638,088.20, 957,150.86 and 238,652.76 is: 357,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,088.20 : 957,150.86 = 238,652.76 : x
  2. Step 2: Convert to fraction form
    638,088.20/957,150.86 = 238,652.76/x
  3. Step 3: Cross multiply
    638,088.20x = 957,150.86 × 238,652.76
  4. Step 4: Simplify right side
    638,088.20x = 228,426,694,475.37
  5. Step 5: Solve for x
    x = 228,426,694,475.37/638,088.20
  6. Step 6: Final answer
    x = 357,986.08

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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.