Home / 280,741.14-387,462.29-178,734.02

Finding the Fourth Proportional to 280,741.14, 387,462.29 and 178,734.02

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Solution

The fourth proportional to 280,741.14, 387,462.29 and 178,734.02 is: 246,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,741.14 : 387,462.29 = 178,734.02 : x
  2. Step 2: Convert to fraction form
    280,741.14/387,462.29 = 178,734.02/x
  3. Step 3: Cross multiply
    280,741.14x = 387,462.29 × 178,734.02
  4. Step 4: Simplify right side
    280,741.14x = 69,252,689,859.12
  5. Step 5: Solve for x
    x = 69,252,689,859.12/280,741.14
  6. Step 6: Final answer
    x = 246,678.10

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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.