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Finding the Fourth Proportional to 372,894.86, 514,556.55 and 209,525.42

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Solution

The fourth proportional to 372,894.86, 514,556.55 and 209,525.42 is: 289,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,894.86 : 514,556.55 = 209,525.42 : x
  2. Step 2: Convert to fraction form
    372,894.86/514,556.55 = 209,525.42/x
  3. Step 3: Cross multiply
    372,894.86x = 514,556.55 × 209,525.42
  4. Step 4: Simplify right side
    372,894.86x = 107,812,674,679.72
  5. Step 5: Solve for x
    x = 107,812,674,679.72/372,894.86
  6. Step 6: Final answer
    x = 289,123.52

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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.