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Finding the Fourth Proportional to 188,678.66, 282,886.77 and 70,318.22

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Solution

The fourth proportional to 188,678.66, 282,886.77 and 70,318.22 is: 105,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,678.66 : 282,886.77 = 70,318.22 : x
  2. Step 2: Convert to fraction form
    188,678.66/282,886.77 = 70,318.22/x
  3. Step 3: Cross multiply
    188,678.66x = 282,886.77 × 70,318.22
  4. Step 4: Simplify right side
    188,678.66x = 19,892,094,127.95
  5. Step 5: Solve for x
    x = 19,892,094,127.95/188,678.66
  6. Step 6: Final answer
    x = 105,428.43

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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.