Home / 223,920.22-309,008.55-123,317.50

Finding the Fourth Proportional to 223,920.22, 309,008.55 and 123,317.50

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Solution

The fourth proportional to 223,920.22, 309,008.55 and 123,317.50 is: 170,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,920.22 : 309,008.55 = 123,317.50 : x
  2. Step 2: Convert to fraction form
    223,920.22/309,008.55 = 123,317.50/x
  3. Step 3: Cross multiply
    223,920.22x = 309,008.55 × 123,317.50
  4. Step 4: Simplify right side
    223,920.22x = 38,106,161,864.63
  5. Step 5: Solve for x
    x = 38,106,161,864.63/223,920.22
  6. Step 6: Final answer
    x = 170,177.40

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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.