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Finding the Fourth Proportional to 384,879.60, 577,319.40 and 195,266.70

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Solution

The fourth proportional to 384,879.60, 577,319.40 and 195,266.70 is: 292,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,879.60 : 577,319.40 = 195,266.70 : x
  2. Step 2: Convert to fraction form
    384,879.60/577,319.40 = 195,266.70/x
  3. Step 3: Cross multiply
    384,879.60x = 577,319.40 × 195,266.70
  4. Step 4: Simplify right side
    384,879.60x = 112,731,254,083.98
  5. Step 5: Solve for x
    x = 112,731,254,083.98/384,879.60
  6. Step 6: Final answer
    x = 292,900.05

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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.