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Finding the Fourth Proportional to 238,581, 357,873.66 and 72,369

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Solution

The fourth proportional to 238,581, 357,873.66 and 72,369 is: 108,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,581 : 357,873.66 = 72,369 : x
  2. Step 2: Convert to fraction form
    238,581/357,873.66 = 72,369/x
  3. Step 3: Cross multiply
    238,581x = 357,873.66 × 72,369
  4. Step 4: Simplify right side
    238,581x = 25,898,958,900.54
  5. Step 5: Solve for x
    x = 25,898,958,900.54/238,581
  6. Step 6: Final answer
    x = 108,554.16

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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.