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Finding the Fourth Proportional to 402,633, 555,668.10 and 223,819.56

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Solution

The fourth proportional to 402,633, 555,668.10 and 223,819.56 is: 308,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,633 : 555,668.10 = 223,819.56 : x
  2. Step 2: Convert to fraction form
    402,633/555,668.10 = 223,819.56/x
  3. Step 3: Cross multiply
    402,633x = 555,668.10 × 223,819.56
  4. Step 4: Simplify right side
    402,633x = 124,369,389,648.04
  5. Step 5: Solve for x
    x = 124,369,389,648.04/402,633
  6. Step 6: Final answer
    x = 308,890.20

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1.5x scale

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.