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Finding the Fourth Proportional to 514,998.60, 772,279.20 and 248,840.70

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Solution

The fourth proportional to 514,998.60, 772,279.20 and 248,840.70 is: 373,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,998.60 : 772,279.20 = 248,840.70 : x
  2. Step 2: Convert to fraction form
    514,998.60/772,279.20 = 248,840.70/x
  3. Step 3: Cross multiply
    514,998.60x = 772,279.20 × 248,840.70
  4. Step 4: Simplify right side
    514,998.60x = 192,174,496,723.44
  5. Step 5: Solve for x
    x = 192,174,496,723.44/514,998.60
  6. Step 6: Final answer
    x = 373,155.38

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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.