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Finding the Fourth Proportional to 279,058.95, 385,096.64 and 151,737.75

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Solution

The fourth proportional to 279,058.95, 385,096.64 and 151,737.75 is: 209,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,058.95 : 385,096.64 = 151,737.75 : x
  2. Step 2: Convert to fraction form
    279,058.95/385,096.64 = 151,737.75/x
  3. Step 3: Cross multiply
    279,058.95x = 385,096.64 × 151,737.75
  4. Step 4: Simplify right side
    279,058.95x = 58,433,696,927.47
  5. Step 5: Solve for x
    x = 58,433,696,927.47/279,058.95
  6. Step 6: Final answer
    x = 209,395.53

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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.