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Finding the Fourth Proportional to 402,633.34, 555,644.76 and 218,884.30

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Solution

The fourth proportional to 402,633.34, 555,644.76 and 218,884.30 is: 302,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,633.34 : 555,644.76 = 218,884.30 : x
  2. Step 2: Convert to fraction form
    402,633.34/555,644.76 = 218,884.30/x
  3. Step 3: Cross multiply
    402,633.34x = 555,644.76 × 218,884.30
  4. Step 4: Simplify right side
    402,633.34x = 121,621,914,341.27
  5. Step 5: Solve for x
    x = 121,621,914,341.27/402,633.34
  6. Step 6: Final answer
    x = 302,066.18

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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.