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Finding the Fourth Proportional to 278,593.77, 384,448.64 and 151,266.45

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Solution

The fourth proportional to 278,593.77, 384,448.64 and 151,266.45 is: 208,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,593.77 : 384,448.64 = 151,266.45 : x
  2. Step 2: Convert to fraction form
    278,593.77/384,448.64 = 151,266.45/x
  3. Step 3: Cross multiply
    278,593.77x = 384,448.64 × 151,266.45
  4. Step 4: Simplify right side
    278,593.77x = 58,154,180,223.80
  5. Step 5: Solve for x
    x = 58,154,180,223.80/278,593.77
  6. Step 6: Final answer
    x = 208,741.85

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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.