Home / 231,328.86-346,995.72-81,541.23

Finding the Fourth Proportional to 231,328.86, 346,995.72 and 81,541.23

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Solution

The fourth proportional to 231,328.86, 346,995.72 and 81,541.23 is: 122,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,328.86 : 346,995.72 = 81,541.23 : x
  2. Step 2: Convert to fraction form
    231,328.86/346,995.72 = 81,541.23/x
  3. Step 3: Cross multiply
    231,328.86x = 346,995.72 × 81,541.23
  4. Step 4: Simplify right side
    231,328.86x = 28,294,457,813.54
  5. Step 5: Solve for x
    x = 28,294,457,813.54/231,328.86
  6. Step 6: Final answer
    x = 122,312.70

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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.