Home / 223,231.61-308,065.36-121,262.91

Finding the Fourth Proportional to 223,231.61, 308,065.36 and 121,262.91

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Solution

The fourth proportional to 223,231.61, 308,065.36 and 121,262.91 is: 167,345.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,231.61 : 308,065.36 = 121,262.91 : x
  2. Step 2: Convert to fraction form
    223,231.61/308,065.36 = 121,262.91/x
  3. Step 3: Cross multiply
    223,231.61x = 308,065.36 × 121,262.91
  4. Step 4: Simplify right side
    223,231.61x = 37,356,900,565.40
  5. Step 5: Solve for x
    x = 37,356,900,565.40/223,231.61
  6. Step 6: Final answer
    x = 167,345.92

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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.