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Finding the Fourth Proportional to 279,071.81, 418,126.25 and 152,802.93

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Solution

The fourth proportional to 279,071.81, 418,126.25 and 152,802.93 is: 228,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,071.81 : 418,126.25 = 152,802.93 : x
  2. Step 2: Convert to fraction form
    279,071.81/418,126.25 = 152,802.93/x
  3. Step 3: Cross multiply
    279,071.81x = 418,126.25 × 152,802.93
  4. Step 4: Simplify right side
    279,071.81x = 63,890,916,491.92
  5. Step 5: Solve for x
    x = 63,890,916,491.92/279,071.81
  6. Step 6: Final answer
    x = 228,940.78

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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.