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Finding the Fourth Proportional to 279,407.94, 418,859.16 and 101,873.40

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Solution

The fourth proportional to 279,407.94, 418,859.16 and 101,873.40 is: 152,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,407.94 : 418,859.16 = 101,873.40 : x
  2. Step 2: Convert to fraction form
    279,407.94/418,859.16 = 101,873.40/x
  3. Step 3: Cross multiply
    279,407.94x = 418,859.16 × 101,873.40
  4. Step 4: Simplify right side
    279,407.94x = 42,670,606,750.34
  5. Step 5: Solve for x
    x = 42,670,606,750.34/279,407.94
  6. Step 6: Final answer
    x = 152,717.95

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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.