Home / 409,105.48-564,430.26-239,219.32

Finding the Fourth Proportional to 409,105.48, 564,430.26 and 239,219.32

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Solution

The fourth proportional to 409,105.48, 564,430.26 and 239,219.32 is: 330,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,105.48 : 564,430.26 = 239,219.32 : x
  2. Step 2: Convert to fraction form
    409,105.48/564,430.26 = 239,219.32/x
  3. Step 3: Cross multiply
    409,105.48x = 564,430.26 × 239,219.32
  4. Step 4: Simplify right side
    409,105.48x = 135,022,622,984.62
  5. Step 5: Solve for x
    x = 135,022,622,984.62/409,105.48
  6. Step 6: Final answer
    x = 330,043.55

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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.