Home / 253,079.07-349,248.83-138,358.37

Finding the Fourth Proportional to 253,079.07, 349,248.83 and 138,358.37

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Solution

The fourth proportional to 253,079.07, 349,248.83 and 138,358.37 is: 190,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,079.07 : 349,248.83 = 138,358.37 : x
  2. Step 2: Convert to fraction form
    253,079.07/349,248.83 = 138,358.37/x
  3. Step 3: Cross multiply
    253,079.07x = 349,248.83 × 138,358.37
  4. Step 4: Simplify right side
    253,079.07x = 48,321,496,405.17
  5. Step 5: Solve for x
    x = 48,321,496,405.17/253,079.07
  6. Step 6: Final answer
    x = 190,934.38

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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.