Home / 380,742.30-571,058.10-100,259.28

Finding the Fourth Proportional to 380,742.30, 571,058.10 and 100,259.28

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Solution

The fourth proportional to 380,742.30, 571,058.10 and 100,259.28 is: 150,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,742.30 : 571,058.10 = 100,259.28 : x
  2. Step 2: Convert to fraction form
    380,742.30/571,058.10 = 100,259.28/x
  3. Step 3: Cross multiply
    380,742.30x = 571,058.10 × 100,259.28
  4. Step 4: Simplify right side
    380,742.30x = 57,253,873,944.17
  5. Step 5: Solve for x
    x = 57,253,873,944.17/380,742.30
  6. Step 6: Final answer
    x = 150,374.34

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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.