Home / 245,732.02-339,121.09-138,309.01

Finding the Fourth Proportional to 245,732.02, 339,121.09 and 138,309.01

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Solution

The fourth proportional to 245,732.02, 339,121.09 and 138,309.01 is: 190,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,732.02 : 339,121.09 = 138,309.01 : x
  2. Step 2: Convert to fraction form
    245,732.02/339,121.09 = 138,309.01/x
  3. Step 3: Cross multiply
    245,732.02x = 339,121.09 × 138,309.01
  4. Step 4: Simplify right side
    245,732.02x = 46,903,502,228.02
  5. Step 5: Solve for x
    x = 46,903,502,228.02/245,732.02
  6. Step 6: Final answer
    x = 190,872.57

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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.