Home / 253,080.72-349,240.56-138,357.24

Finding the Fourth Proportional to 253,080.72, 349,240.56 and 138,357.24

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Solution

The fourth proportional to 253,080.72, 349,240.56 and 138,357.24 is: 190,927.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,080.72 : 349,240.56 = 138,357.24 : x
  2. Step 2: Convert to fraction form
    253,080.72/349,240.56 = 138,357.24/x
  3. Step 3: Cross multiply
    253,080.72x = 349,240.56 × 138,357.24
  4. Step 4: Simplify right side
    253,080.72x = 48,319,959,977.65
  5. Step 5: Solve for x
    x = 48,319,959,977.65/253,080.72
  6. Step 6: Final answer
    x = 190,927.07

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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.