Home / 438,573.30-657,330.20-213,596.62

Finding the Fourth Proportional to 438,573.30, 657,330.20 and 213,596.62

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Solution

The fourth proportional to 438,573.30, 657,330.20 and 213,596.62 is: 320,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,573.30 : 657,330.20 = 213,596.62 : x
  2. Step 2: Convert to fraction form
    438,573.30/657,330.20 = 213,596.62/x
  3. Step 3: Cross multiply
    438,573.30x = 657,330.20 × 213,596.62
  4. Step 4: Simplify right side
    438,573.30x = 140,403,508,943.92
  5. Step 5: Solve for x
    x = 140,403,508,943.92/438,573.30
  6. Step 6: Final answer
    x = 320,136.93

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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.