Home / 431,038.91-646,636.78-178,182.07

Finding the Fourth Proportional to 431,038.91, 646,636.78 and 178,182.07

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Solution

The fourth proportional to 431,038.91, 646,636.78 and 178,182.07 is: 267,305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,038.91 : 646,636.78 = 178,182.07 : x
  2. Step 2: Convert to fraction form
    431,038.91/646,636.78 = 178,182.07/x
  3. Step 3: Cross multiply
    431,038.91x = 646,636.78 × 178,182.07
  4. Step 4: Simplify right side
    431,038.91x = 115,219,077,945.90
  5. Step 5: Solve for x
    x = 115,219,077,945.90/431,038.91
  6. Step 6: Final answer
    x = 267,305.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.