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Finding the Fourth Proportional to 665,148.80, 997,852.80 and 265,721.60

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Solution

The fourth proportional to 665,148.80, 997,852.80 and 265,721.60 is: 398,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,148.80 : 997,852.80 = 265,721.60 : x
  2. Step 2: Convert to fraction form
    665,148.80/997,852.80 = 265,721.60/x
  3. Step 3: Cross multiply
    665,148.80x = 997,852.80 × 265,721.60
  4. Step 4: Simplify right side
    665,148.80x = 265,151,042,580.48
  5. Step 5: Solve for x
    x = 265,151,042,580.48/665,148.80
  6. Step 6: Final answer
    x = 398,634.17

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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.