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Finding the Fourth Proportional to 251,802.84, 347,475.42 and 138,623.16

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Solution

The fourth proportional to 251,802.84, 347,475.42 and 138,623.16 is: 191,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,802.84 : 347,475.42 = 138,623.16 : x
  2. Step 2: Convert to fraction form
    251,802.84/347,475.42 = 138,623.16/x
  3. Step 3: Cross multiply
    251,802.84x = 347,475.42 × 138,623.16
  4. Step 4: Simplify right side
    251,802.84x = 48,168,140,742.73
  5. Step 5: Solve for x
    x = 48,168,140,742.73/251,802.84
  6. Step 6: Final answer
    x = 191,293.08

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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.