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Finding the Fourth Proportional to 202,319.31, 279,200.67 and 111,675.30

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Solution

The fourth proportional to 202,319.31, 279,200.67 and 111,675.30 is: 154,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,319.31 : 279,200.67 = 111,675.30 : x
  2. Step 2: Convert to fraction form
    202,319.31/279,200.67 = 111,675.30/x
  3. Step 3: Cross multiply
    202,319.31x = 279,200.67 × 111,675.30
  4. Step 4: Simplify right side
    202,319.31x = 31,179,818,582.45
  5. Step 5: Solve for x
    x = 31,179,818,582.45/202,319.31
  6. Step 6: Final answer
    x = 154,111.93

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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.