Home / 228,178.22-342,275.83-78,521.81

Finding the Fourth Proportional to 228,178.22, 342,275.83 and 78,521.81

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Solution

The fourth proportional to 228,178.22, 342,275.83 and 78,521.81 is: 117,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,178.22 : 342,275.83 = 78,521.81 : x
  2. Step 2: Convert to fraction form
    228,178.22/342,275.83 = 78,521.81/x
  3. Step 3: Cross multiply
    228,178.22x = 342,275.83 × 78,521.81
  4. Step 4: Simplify right side
    228,178.22x = 26,876,115,783.17
  5. Step 5: Solve for x
    x = 26,876,115,783.17/228,178.22
  6. Step 6: Final answer
    x = 117,785.63

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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.