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Finding the Fourth Proportional to 238,727.76, 358,137 and 70,247.76

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Solution

The fourth proportional to 238,727.76, 358,137 and 70,247.76 is: 105,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,727.76 : 358,137 = 70,247.76 : x
  2. Step 2: Convert to fraction form
    238,727.76/358,137 = 70,247.76/x
  3. Step 3: Cross multiply
    238,727.76x = 358,137 × 70,247.76
  4. Step 4: Simplify right side
    238,727.76x = 25,158,322,023.12
  5. Step 5: Solve for x
    x = 25,158,322,023.12/238,727.76
  6. Step 6: Final answer
    x = 105,384.99

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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.