Home / 280,726.14-387,441.59-178,719.02

Finding the Fourth Proportional to 280,726.14, 387,441.59 and 178,719.02

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Solution

The fourth proportional to 280,726.14, 387,441.59 and 178,719.02 is: 246,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,726.14 : 387,441.59 = 178,719.02 : x
  2. Step 2: Convert to fraction form
    280,726.14/387,441.59 = 178,719.02/x
  3. Step 3: Cross multiply
    280,726.14x = 387,441.59 × 178,719.02
  4. Step 4: Simplify right side
    280,726.14x = 69,243,178,441.24
  5. Step 5: Solve for x
    x = 69,243,178,441.24/280,726.14
  6. Step 6: Final answer
    x = 246,657.40

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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.