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Finding the Fourth Proportional to 228,141.66, 342,260.67 and 85,983.93

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Solution

The fourth proportional to 228,141.66, 342,260.67 and 85,983.93 is: 128,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,141.66 : 342,260.67 = 85,983.93 : x
  2. Step 2: Convert to fraction form
    228,141.66/342,260.67 = 85,983.93/x
  3. Step 3: Cross multiply
    228,141.66x = 342,260.67 × 85,983.93
  4. Step 4: Simplify right side
    228,141.66x = 29,428,915,779.73
  5. Step 5: Solve for x
    x = 29,428,915,779.73/228,141.66
  6. Step 6: Final answer
    x = 128,994.05

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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.