Home / 279,485.27-385,565.06-188,812.07

Finding the Fourth Proportional to 279,485.27, 385,565.06 and 188,812.07

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Solution

The fourth proportional to 279,485.27, 385,565.06 and 188,812.07 is: 260,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,485.27 : 385,565.06 = 188,812.07 : x
  2. Step 2: Convert to fraction form
    279,485.27/385,565.06 = 188,812.07/x
  3. Step 3: Cross multiply
    279,485.27x = 385,565.06 × 188,812.07
  4. Step 4: Simplify right side
    279,485.27x = 72,799,334,226.39
  5. Step 5: Solve for x
    x = 72,799,334,226.39/279,485.27
  6. Step 6: Final answer
    x = 260,476.47

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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.