Home / 253,022.98-349,171.41-138,302.38

Finding the Fourth Proportional to 253,022.98, 349,171.41 and 138,302.38

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Solution

The fourth proportional to 253,022.98, 349,171.41 and 138,302.38 is: 190,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,022.98 : 349,171.41 = 138,302.38 : x
  2. Step 2: Convert to fraction form
    253,022.98/349,171.41 = 138,302.38/x
  3. Step 3: Cross multiply
    253,022.98x = 349,171.41 × 138,302.38
  4. Step 4: Simplify right side
    253,022.98x = 48,291,237,030.96
  5. Step 5: Solve for x
    x = 48,291,237,030.96/253,022.98
  6. Step 6: Final answer
    x = 190,857.12

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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.