Home / 280,429.26-387,036.81-178,348.29

Finding the Fourth Proportional to 280,429.26, 387,036.81 and 178,348.29

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Solution

The fourth proportional to 280,429.26, 387,036.81 and 178,348.29 is: 246,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,429.26 : 387,036.81 = 178,348.29 : x
  2. Step 2: Convert to fraction form
    280,429.26/387,036.81 = 178,348.29/x
  3. Step 3: Cross multiply
    280,429.26x = 387,036.81 × 178,348.29
  4. Step 4: Simplify right side
    280,429.26x = 69,027,353,230.55
  5. Step 5: Solve for x
    x = 69,027,353,230.55/280,429.26
  6. Step 6: Final answer
    x = 246,148.90

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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.