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Finding the Fourth Proportional to 248,601.67, 343,068.52 and 135,424.45

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Solution

The fourth proportional to 248,601.67, 343,068.52 and 135,424.45 is: 186,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,601.67 : 343,068.52 = 135,424.45 : x
  2. Step 2: Convert to fraction form
    248,601.67/343,068.52 = 135,424.45/x
  3. Step 3: Cross multiply
    248,601.67x = 343,068.52 × 135,424.45
  4. Step 4: Simplify right side
    248,601.67x = 46,459,865,633.31
  5. Step 5: Solve for x
    x = 46,459,865,633.31/248,601.67
  6. Step 6: Final answer
    x = 186,884.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.