Home / 438,869.42-657,941.24-202,012.46

Finding the Fourth Proportional to 438,869.42, 657,941.24 and 202,012.46

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Solution

The fourth proportional to 438,869.42, 657,941.24 and 202,012.46 is: 302,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,869.42 : 657,941.24 = 202,012.46 : x
  2. Step 2: Convert to fraction form
    438,869.42/657,941.24 = 202,012.46/x
  3. Step 3: Cross multiply
    438,869.42x = 657,941.24 × 202,012.46
  4. Step 4: Simplify right side
    438,869.42x = 132,912,328,427.85
  5. Step 5: Solve for x
    x = 132,912,328,427.85/438,869.42
  6. Step 6: Final answer
    x = 302,851.65

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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.