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Finding the Fourth Proportional to 286,728.77, 430,083.30 and 73,498.76

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Solution

The fourth proportional to 286,728.77, 430,083.30 and 73,498.76 is: 110,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,728.77 : 430,083.30 = 73,498.76 : x
  2. Step 2: Convert to fraction form
    286,728.77/430,083.30 = 73,498.76/x
  3. Step 3: Cross multiply
    286,728.77x = 430,083.30 × 73,498.76
  4. Step 4: Simplify right side
    286,728.77x = 31,610,589,246.71
  5. Step 5: Solve for x
    x = 31,610,589,246.71/286,728.77
  6. Step 6: Final answer
    x = 110,245.61

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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.