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Finding the Fourth Proportional to 275,799.08, 380,643.90 and 168,430.88

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Solution

The fourth proportional to 275,799.08, 380,643.90 and 168,430.88 is: 232,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,799.08 : 380,643.90 = 168,430.88 : x
  2. Step 2: Convert to fraction form
    275,799.08/380,643.90 = 168,430.88/x
  3. Step 3: Cross multiply
    275,799.08x = 380,643.90 × 168,430.88
  4. Step 4: Simplify right side
    275,799.08x = 64,112,187,043.63
  5. Step 5: Solve for x
    x = 64,112,187,043.63/275,799.08
  6. Step 6: Final answer
    x = 232,459.76

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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.