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Finding the Fourth Proportional to 279,594.72, 385,925.04 and 190,222.56

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Solution

The fourth proportional to 279,594.72, 385,925.04 and 190,222.56 is: 262,564.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,594.72 : 385,925.04 = 190,222.56 : x
  2. Step 2: Convert to fraction form
    279,594.72/385,925.04 = 190,222.56/x
  3. Step 3: Cross multiply
    279,594.72x = 385,925.04 × 190,222.56
  4. Step 4: Simplify right side
    279,594.72x = 73,411,649,076.90
  5. Step 5: Solve for x
    x = 73,411,649,076.90/279,594.72
  6. Step 6: Final answer
    x = 262,564.50

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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.