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Finding the Fourth Proportional to 358,980.78, 495,387.39 and 197,832.39

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Solution

The fourth proportional to 358,980.78, 495,387.39 and 197,832.39 is: 273,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,980.78 : 495,387.39 = 197,832.39 : x
  2. Step 2: Convert to fraction form
    358,980.78/495,387.39 = 197,832.39/x
  3. Step 3: Cross multiply
    358,980.78x = 495,387.39 × 197,832.39
  4. Step 4: Simplify right side
    358,980.78x = 98,003,671,339.56
  5. Step 5: Solve for x
    x = 98,003,671,339.56/358,980.78
  6. Step 6: Final answer
    x = 273,005.34

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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.