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Finding the Fourth Proportional to 373,993.35, 516,155.13 and 210,655.23

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Solution

The fourth proportional to 373,993.35, 516,155.13 and 210,655.23 is: 290,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,993.35 : 516,155.13 = 210,655.23 : x
  2. Step 2: Convert to fraction form
    373,993.35/516,155.13 = 210,655.23/x
  3. Step 3: Cross multiply
    373,993.35x = 516,155.13 × 210,655.23
  4. Step 4: Simplify right side
    373,993.35x = 108,730,777,625.83
  5. Step 5: Solve for x
    x = 108,730,777,625.83/373,993.35
  6. Step 6: Final answer
    x = 290,729.17

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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.