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Finding the Fourth Proportional to 254,165.34, 380,646.84 and 220,703.55

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Solution

The fourth proportional to 254,165.34, 380,646.84 and 220,703.55 is: 330,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,165.34 : 380,646.84 = 220,703.55 : x
  2. Step 2: Convert to fraction form
    254,165.34/380,646.84 = 220,703.55/x
  3. Step 3: Cross multiply
    254,165.34x = 380,646.84 × 220,703.55
  4. Step 4: Simplify right side
    254,165.34x = 84,010,108,884.28
  5. Step 5: Solve for x
    x = 84,010,108,884.28/254,165.34
  6. Step 6: Final answer
    x = 330,533.30

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1.5x scale

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.