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Finding the Fourth Proportional to 279,230.94, 385,336.86 and 151,907.04

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Solution

The fourth proportional to 279,230.94, 385,336.86 and 151,907.04 is: 209,630.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,230.94 : 385,336.86 = 151,907.04 : x
  2. Step 2: Convert to fraction form
    279,230.94/385,336.86 = 151,907.04/x
  3. Step 3: Cross multiply
    279,230.94x = 385,336.86 × 151,907.04
  4. Step 4: Simplify right side
    279,230.94x = 58,535,381,805.49
  5. Step 5: Solve for x
    x = 58,535,381,805.49/279,230.94
  6. Step 6: Final answer
    x = 209,630.72

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1.5x scale

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.