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Finding the Fourth Proportional to 253,779.63, 350,057.34 and 163,253.49

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Solution

The fourth proportional to 253,779.63, 350,057.34 and 163,253.49 is: 225,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,779.63 : 350,057.34 = 163,253.49 : x
  2. Step 2: Convert to fraction form
    253,779.63/350,057.34 = 163,253.49/x
  3. Step 3: Cross multiply
    253,779.63x = 350,057.34 × 163,253.49
  4. Step 4: Simplify right side
    253,779.63x = 57,148,082,455.12
  5. Step 5: Solve for x
    x = 57,148,082,455.12/253,779.63
  6. Step 6: Final answer
    x = 225,187.82

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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.