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Finding the Fourth Proportional to 188,670.38, 282,983.94 and 70,345.58

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Solution

The fourth proportional to 188,670.38, 282,983.94 and 70,345.58 is: 105,510.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,670.38 : 282,983.94 = 70,345.58 : x
  2. Step 2: Convert to fraction form
    188,670.38/282,983.94 = 70,345.58/x
  3. Step 3: Cross multiply
    188,670.38x = 282,983.94 × 70,345.58
  4. Step 4: Simplify right side
    188,670.38x = 19,906,669,389.99
  5. Step 5: Solve for x
    x = 19,906,669,389.99/188,670.38
  6. Step 6: Final answer
    x = 105,510.31

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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.