Home / 253,202.50-349,405.32-138,458.38

Finding the Fourth Proportional to 253,202.50, 349,405.32 and 138,458.38

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Solution

The fourth proportional to 253,202.50, 349,405.32 and 138,458.38 is: 191,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,202.50 : 349,405.32 = 138,458.38 : x
  2. Step 2: Convert to fraction form
    253,202.50/349,405.32 = 138,458.38/x
  3. Step 3: Cross multiply
    253,202.50x = 349,405.32 × 138,458.38
  4. Step 4: Simplify right side
    253,202.50x = 48,378,094,570.58
  5. Step 5: Solve for x
    x = 48,378,094,570.58/253,202.50
  6. Step 6: Final answer
    x = 191,064.84

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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.