Home / 353,274.48-487,347.30-209,932.83

Finding the Fourth Proportional to 353,274.48, 487,347.30 and 209,932.83

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Solution

The fourth proportional to 353,274.48, 487,347.30 and 209,932.83 is: 289,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,274.48 : 487,347.30 = 209,932.83 : x
  2. Step 2: Convert to fraction form
    353,274.48/487,347.30 = 209,932.83/x
  3. Step 3: Cross multiply
    353,274.48x = 487,347.30 × 209,932.83
  4. Step 4: Simplify right side
    353,274.48x = 102,310,197,881.86
  5. Step 5: Solve for x
    x = 102,310,197,881.86/353,274.48
  6. Step 6: Final answer
    x = 289,605.40

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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.