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Finding the Fourth Proportional to 272,070.60, 408,543.30 and 197,712.60

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Solution

The fourth proportional to 272,070.60, 408,543.30 and 197,712.60 is: 296,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,070.60 : 408,543.30 = 197,712.60 : x
  2. Step 2: Convert to fraction form
    272,070.60/408,543.30 = 197,712.60/x
  3. Step 3: Cross multiply
    272,070.60x = 408,543.30 × 197,712.60
  4. Step 4: Simplify right side
    272,070.60x = 80,774,158,055.58
  5. Step 5: Solve for x
    x = 80,774,158,055.58/272,070.60
  6. Step 6: Final answer
    x = 296,886.76

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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.