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Finding the Fourth Proportional to 268,670, 370,764.59 and 147,808.69

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Solution

The fourth proportional to 268,670, 370,764.59 and 147,808.69 is: 203,975.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,670 : 370,764.59 = 147,808.69 : x
  2. Step 2: Convert to fraction form
    268,670/370,764.59 = 147,808.69/x
  3. Step 3: Cross multiply
    268,670x = 370,764.59 × 147,808.69
  4. Step 4: Simplify right side
    268,670x = 54,802,228,346.29
  5. Step 5: Solve for x
    x = 54,802,228,346.29/268,670
  6. Step 6: Final answer
    x = 203,975.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.