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Finding the Fourth Proportional to 665,086.60, 997,338.30 and 265,594.60

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Solution

The fourth proportional to 665,086.60, 997,338.30 and 265,594.60 is: 398,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,086.60 : 997,338.30 = 265,594.60 : x
  2. Step 2: Convert to fraction form
    665,086.60/997,338.30 = 265,594.60/x
  3. Step 3: Cross multiply
    665,086.60x = 997,338.30 × 265,594.60
  4. Step 4: Simplify right side
    665,086.60x = 264,887,666,853.18
  5. Step 5: Solve for x
    x = 264,887,666,853.18/665,086.60
  6. Step 6: Final answer
    x = 398,275.45

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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.