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Finding the Fourth Proportional to 298,501.39, 411,911.08 and 169,442.47

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Solution

The fourth proportional to 298,501.39, 411,911.08 and 169,442.47 is: 233,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,501.39 : 411,911.08 = 169,442.47 : x
  2. Step 2: Convert to fraction form
    298,501.39/411,911.08 = 169,442.47/x
  3. Step 3: Cross multiply
    298,501.39x = 411,911.08 × 169,442.47
  4. Step 4: Simplify right side
    298,501.39x = 69,795,230,815.57
  5. Step 5: Solve for x
    x = 69,795,230,815.57/298,501.39
  6. Step 6: Final answer
    x = 233,818.78

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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.