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Finding the Fourth Proportional to 275,902.04, 380,752.40 and 155,054.34

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Solution

The fourth proportional to 275,902.04, 380,752.40 and 155,054.34 is: 213,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,902.04 : 380,752.40 = 155,054.34 : x
  2. Step 2: Convert to fraction form
    275,902.04/380,752.40 = 155,054.34/x
  3. Step 3: Cross multiply
    275,902.04x = 380,752.40 × 155,054.34
  4. Step 4: Simplify right side
    275,902.04x = 59,037,311,310.14
  5. Step 5: Solve for x
    x = 59,037,311,310.14/275,902.04
  6. Step 6: Final answer
    x = 213,979.25

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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.