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Finding the Fourth Proportional to 384,587.40, 530,600.70 and 223,309.82

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Solution

The fourth proportional to 384,587.40, 530,600.70 and 223,309.82 is: 308,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,587.40 : 530,600.70 = 223,309.82 : x
  2. Step 2: Convert to fraction form
    384,587.40/530,600.70 = 223,309.82/x
  3. Step 3: Cross multiply
    384,587.40x = 530,600.70 × 223,309.82
  4. Step 4: Simplify right side
    384,587.40x = 118,488,348,972.79
  5. Step 5: Solve for x
    x = 118,488,348,972.79/384,587.40
  6. Step 6: Final answer
    x = 308,092.12

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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.