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Finding the Fourth Proportional to 286,727.77, 430,081.80 and 73,497.76

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Solution

The fourth proportional to 286,727.77, 430,081.80 and 73,497.76 is: 110,244.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,727.77 : 430,081.80 = 73,497.76 : x
  2. Step 2: Convert to fraction form
    286,727.77/430,081.80 = 73,497.76/x
  3. Step 3: Cross multiply
    286,727.77x = 430,081.80 × 73,497.76
  4. Step 4: Simplify right side
    286,727.77x = 31,610,048,916.77
  5. Step 5: Solve for x
    x = 31,610,048,916.77/286,727.77
  6. Step 6: Final answer
    x = 110,244.11

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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.