Home / 400,739.37-553,016.39-216,977.05

Finding the Fourth Proportional to 400,739.37, 553,016.39 and 216,977.05

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Solution

The fourth proportional to 400,739.37, 553,016.39 and 216,977.05 is: 299,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,739.37 : 553,016.39 = 216,977.05 : x
  2. Step 2: Convert to fraction form
    400,739.37/553,016.39 = 216,977.05/x
  3. Step 3: Cross multiply
    400,739.37x = 553,016.39 × 216,977.05
  4. Step 4: Simplify right side
    400,739.37x = 119,991,861,053.88
  5. Step 5: Solve for x
    x = 119,991,861,053.88/400,739.37
  6. Step 6: Final answer
    x = 299,426.19

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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.