Home / 529,139.58-793,165.78-209,161.50

Finding the Fourth Proportional to 529,139.58, 793,165.78 and 209,161.50

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Solution

The fourth proportional to 529,139.58, 793,165.78 and 209,161.50 is: 313,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,139.58 : 793,165.78 = 209,161.50 : x
  2. Step 2: Convert to fraction form
    529,139.58/793,165.78 = 209,161.50/x
  3. Step 3: Cross multiply
    529,139.58x = 793,165.78 × 209,161.50
  4. Step 4: Simplify right side
    529,139.58x = 165,899,744,293.47
  5. Step 5: Solve for x
    x = 165,899,744,293.47/529,139.58
  6. Step 6: Final answer
    x = 313,527.38

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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.