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Finding the Fourth Proportional to 199,280.10, 279,199.50 and 199,280.10

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Solution

The fourth proportional to 199,280.10, 279,199.50 and 199,280.10 is: 279,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,280.10 : 279,199.50 = 199,280.10 : x
  2. Step 2: Convert to fraction form
    199,280.10/279,199.50 = 199,280.10/x
  3. Step 3: Cross multiply
    199,280.10x = 279,199.50 × 199,280.10
  4. Step 4: Simplify right side
    199,280.10x = 55,638,904,279.95
  5. Step 5: Solve for x
    x = 55,638,904,279.95/199,280.10
  6. Step 6: Final answer
    x = 279,199.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.