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Finding the Fourth Proportional to 358,959.86, 495,367.88 and 197,820.66

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Solution

The fourth proportional to 358,959.86, 495,367.88 and 197,820.66 is: 272,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,959.86 : 495,367.88 = 197,820.66 : x
  2. Step 2: Convert to fraction form
    358,959.86/495,367.88 = 197,820.66/x
  3. Step 3: Cross multiply
    358,959.86x = 495,367.88 × 197,820.66
  4. Step 4: Simplify right side
    358,959.86x = 97,993,999,975.30
  5. Step 5: Solve for x
    x = 97,993,999,975.30/358,959.86
  6. Step 6: Final answer
    x = 272,994.32

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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.