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Finding the Fourth Proportional to 250,068.36, 345,094.92 and 136,898.40

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Solution

The fourth proportional to 250,068.36, 345,094.92 and 136,898.40 is: 188,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,068.36 : 345,094.92 = 136,898.40 : x
  2. Step 2: Convert to fraction form
    250,068.36/345,094.92 = 136,898.40/x
  3. Step 3: Cross multiply
    250,068.36x = 345,094.92 × 136,898.40
  4. Step 4: Simplify right side
    250,068.36x = 47,242,942,396.13
  5. Step 5: Solve for x
    x = 47,242,942,396.13/250,068.36
  6. Step 6: Final answer
    x = 188,920.11

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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.