Home / 223,197.68-308,015.03-121,225.14

Finding the Fourth Proportional to 223,197.68, 308,015.03 and 121,225.14

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Solution

The fourth proportional to 223,197.68, 308,015.03 and 121,225.14 is: 167,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,197.68 : 308,015.03 = 121,225.14 : x
  2. Step 2: Convert to fraction form
    223,197.68/308,015.03 = 121,225.14/x
  3. Step 3: Cross multiply
    223,197.68x = 308,015.03 × 121,225.14
  4. Step 4: Simplify right side
    223,197.68x = 37,339,164,142.71
  5. Step 5: Solve for x
    x = 37,339,164,142.71/223,197.68
  6. Step 6: Final answer
    x = 167,291.90

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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.