Home / 213,502.08-320,253.12-55,729.16

Finding the Fourth Proportional to 213,502.08, 320,253.12 and 55,729.16

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Solution

The fourth proportional to 213,502.08, 320,253.12 and 55,729.16 is: 83,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,502.08 : 320,253.12 = 55,729.16 : x
  2. Step 2: Convert to fraction form
    213,502.08/320,253.12 = 55,729.16/x
  3. Step 3: Cross multiply
    213,502.08x = 320,253.12 × 55,729.16
  4. Step 4: Simplify right side
    213,502.08x = 17,847,437,364.98
  5. Step 5: Solve for x
    x = 17,847,437,364.98/213,502.08
  6. Step 6: Final answer
    x = 83,593.74

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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.