Home / 389,744.63-537,849.20-210,896.63

Finding the Fourth Proportional to 389,744.63, 537,849.20 and 210,896.63

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Solution

The fourth proportional to 389,744.63, 537,849.20 and 210,896.63 is: 291,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,744.63 : 537,849.20 = 210,896.63 : x
  2. Step 2: Convert to fraction form
    389,744.63/537,849.20 = 210,896.63/x
  3. Step 3: Cross multiply
    389,744.63x = 537,849.20 × 210,896.63
  4. Step 4: Simplify right side
    389,744.63x = 113,430,581,566.19
  5. Step 5: Solve for x
    x = 113,430,581,566.19/389,744.63
  6. Step 6: Final answer
    x = 291,038.22

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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.