Home / 253,022.16-349,171.66-138,303.12

Finding the Fourth Proportional to 253,022.16, 349,171.66 and 138,303.12

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Solution

The fourth proportional to 253,022.16, 349,171.66 and 138,303.12 is: 190,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,022.16 : 349,171.66 = 138,303.12 : x
  2. Step 2: Convert to fraction form
    253,022.16/349,171.66 = 138,303.12/x
  3. Step 3: Cross multiply
    253,022.16x = 349,171.66 × 138,303.12
  4. Step 4: Simplify right side
    253,022.16x = 48,291,529,993.58
  5. Step 5: Solve for x
    x = 48,291,529,993.58/253,022.16
  6. Step 6: Final answer
    x = 190,858.90

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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.