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Finding the Fourth Proportional to 228,343.83, 342,723.51 and 121,818.10

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Solution

The fourth proportional to 228,343.83, 342,723.51 and 121,818.10 is: 182,837.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,343.83 : 342,723.51 = 121,818.10 : x
  2. Step 2: Convert to fraction form
    228,343.83/342,723.51 = 121,818.10/x
  3. Step 3: Cross multiply
    228,343.83x = 342,723.51 × 121,818.10
  4. Step 4: Simplify right side
    228,343.83x = 41,749,925,956.72
  5. Step 5: Solve for x
    x = 41,749,925,956.72/228,343.83
  6. Step 6: Final answer
    x = 182,837.99

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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.