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Finding the Fourth Proportional to 370,649.34, 555,974.01 and 90,164.16

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Solution

The fourth proportional to 370,649.34, 555,974.01 and 90,164.16 is: 135,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,649.34 : 555,974.01 = 90,164.16 : x
  2. Step 2: Convert to fraction form
    370,649.34/555,974.01 = 90,164.16/x
  3. Step 3: Cross multiply
    370,649.34x = 555,974.01 × 90,164.16
  4. Step 4: Simplify right side
    370,649.34x = 50,128,929,593.48
  5. Step 5: Solve for x
    x = 50,128,929,593.48/370,649.34
  6. Step 6: Final answer
    x = 135,246.24

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Similar ratio
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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.