Home / 356,579.55-492,007.05-211,321.31

Finding the Fourth Proportional to 356,579.55, 492,007.05 and 211,321.31

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Solution

The fourth proportional to 356,579.55, 492,007.05 and 211,321.31 is: 291,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,579.55 : 492,007.05 = 211,321.31 : x
  2. Step 2: Convert to fraction form
    356,579.55/492,007.05 = 211,321.31/x
  3. Step 3: Cross multiply
    356,579.55x = 492,007.05 × 211,321.31
  4. Step 4: Simplify right side
    356,579.55x = 103,971,574,335.24
  5. Step 5: Solve for x
    x = 103,971,574,335.24/356,579.55
  6. Step 6: Final answer
    x = 291,580.31

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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.