Home / 314,960.72-434,629.32-178,976.48

Finding the Fourth Proportional to 314,960.72, 434,629.32 and 178,976.48

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Solution

The fourth proportional to 314,960.72, 434,629.32 and 178,976.48 is: 246,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,960.72 : 434,629.32 = 178,976.48 : x
  2. Step 2: Convert to fraction form
    314,960.72/434,629.32 = 178,976.48/x
  3. Step 3: Cross multiply
    314,960.72x = 434,629.32 × 178,976.48
  4. Step 4: Simplify right side
    314,960.72x = 77,788,425,798.39
  5. Step 5: Solve for x
    x = 77,788,425,798.39/314,960.72
  6. Step 6: Final answer
    x = 246,978.18

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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.