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Finding the Fourth Proportional to 384,743.70, 577,407.15 and 251,579.70

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Solution

The fourth proportional to 384,743.70, 577,407.15 and 251,579.70 is: 377,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,743.70 : 577,407.15 = 251,579.70 : x
  2. Step 2: Convert to fraction form
    384,743.70/577,407.15 = 251,579.70/x
  3. Step 3: Cross multiply
    384,743.70x = 577,407.15 × 251,579.70
  4. Step 4: Simplify right side
    384,743.70x = 145,263,917,574.86
  5. Step 5: Solve for x
    x = 145,263,917,574.86/384,743.70
  6. Step 6: Final answer
    x = 377,560.22

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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.