Home / 372,220.50-557,886.06-135,434.28

Finding the Fourth Proportional to 372,220.50, 557,886.06 and 135,434.28

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Solution

The fourth proportional to 372,220.50, 557,886.06 and 135,434.28 is: 202,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,220.50 : 557,886.06 = 135,434.28 : x
  2. Step 2: Convert to fraction form
    372,220.50/557,886.06 = 135,434.28/x
  3. Step 3: Cross multiply
    372,220.50x = 557,886.06 × 135,434.28
  4. Step 4: Simplify right side
    372,220.50x = 75,556,896,858.14
  5. Step 5: Solve for x
    x = 75,556,896,858.14/372,220.50
  6. Step 6: Final answer
    x = 202,989.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.