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Finding the Fourth Proportional to 248,465.13, 342,881.88 and 135,287.88

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Solution

The fourth proportional to 248,465.13, 342,881.88 and 135,287.88 is: 186,697.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,465.13 : 342,881.88 = 135,287.88 : x
  2. Step 2: Convert to fraction form
    248,465.13/342,881.88 = 135,287.88/x
  3. Step 3: Cross multiply
    248,465.13x = 342,881.88 × 135,287.88
  4. Step 4: Simplify right side
    248,465.13x = 46,387,760,244.77
  5. Step 5: Solve for x
    x = 46,387,760,244.77/248,465.13
  6. Step 6: Final answer
    x = 186,697.27

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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.