Home / 291,317.36-402,025.56-163,997.60

Finding the Fourth Proportional to 291,317.36, 402,025.56 and 163,997.60

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Solution

The fourth proportional to 291,317.36, 402,025.56 and 163,997.60 is: 226,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,317.36 : 402,025.56 = 163,997.60 : x
  2. Step 2: Convert to fraction form
    291,317.36/402,025.56 = 163,997.60/x
  3. Step 3: Cross multiply
    291,317.36x = 402,025.56 × 163,997.60
  4. Step 4: Simplify right side
    291,317.36x = 65,931,226,978.66
  5. Step 5: Solve for x
    x = 65,931,226,978.66/291,317.36
  6. Step 6: Final answer
    x = 226,320.97

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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.