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Finding the Fourth Proportional to 279,603.44, 385,854.72 and 152,276.48

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Solution

The fourth proportional to 279,603.44, 385,854.72 and 152,276.48 is: 210,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,603.44 : 385,854.72 = 152,276.48 : x
  2. Step 2: Convert to fraction form
    279,603.44/385,854.72 = 152,276.48/x
  3. Step 3: Cross multiply
    279,603.44x = 385,854.72 × 152,276.48
  4. Step 4: Simplify right side
    279,603.44x = 58,756,598,552.99
  5. Step 5: Solve for x
    x = 58,756,598,552.99/279,603.44
  6. Step 6: Final answer
    x = 210,142.62

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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.