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Finding the Fourth Proportional to 613,252.64, 920,032.06 and 213,899.16

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Solution

The fourth proportional to 613,252.64, 920,032.06 and 213,899.16 is: 320,902.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,252.64 : 920,032.06 = 213,899.16 : x
  2. Step 2: Convert to fraction form
    613,252.64/920,032.06 = 213,899.16/x
  3. Step 3: Cross multiply
    613,252.64x = 920,032.06 × 213,899.16
  4. Step 4: Simplify right side
    613,252.64x = 196,794,084,807.07
  5. Step 5: Solve for x
    x = 196,794,084,807.07/613,252.64
  6. Step 6: Final answer
    x = 320,902.14

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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.