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Finding the Fourth Proportional to 275,807.58, 380,655.63 and 168,439.38

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Solution

The fourth proportional to 275,807.58, 380,655.63 and 168,439.38 is: 232,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,807.58 : 380,655.63 = 168,439.38 : x
  2. Step 2: Convert to fraction form
    275,807.58/380,655.63 = 168,439.38/x
  3. Step 3: Cross multiply
    275,807.58x = 380,655.63 × 168,439.38
  4. Step 4: Simplify right side
    275,807.58x = 64,117,398,310.71
  5. Step 5: Solve for x
    x = 64,117,398,310.71/275,807.58
  6. Step 6: Final answer
    x = 232,471.49

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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.