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Finding the Fourth Proportional to 389,701.59, 537,590.05 and 236,699.07

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Solution

The fourth proportional to 389,701.59, 537,590.05 and 236,699.07 is: 326,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,701.59 : 537,590.05 = 236,699.07 : x
  2. Step 2: Convert to fraction form
    389,701.59/537,590.05 = 236,699.07/x
  3. Step 3: Cross multiply
    389,701.59x = 537,590.05 × 236,699.07
  4. Step 4: Simplify right side
    389,701.59x = 127,247,064,876.25
  5. Step 5: Solve for x
    x = 127,247,064,876.25/389,701.59
  6. Step 6: Final answer
    x = 326,524.37

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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.