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Finding the Fourth Proportional to 388,060.54, 535,065.41 and 265,611.92

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Solution

The fourth proportional to 388,060.54, 535,065.41 and 265,611.92 is: 366,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,060.54 : 535,065.41 = 265,611.92 : x
  2. Step 2: Convert to fraction form
    388,060.54/535,065.41 = 265,611.92/x
  3. Step 3: Cross multiply
    388,060.54x = 535,065.41 × 265,611.92
  4. Step 4: Simplify right side
    388,060.54x = 142,119,748,864.39
  5. Step 5: Solve for x
    x = 142,119,748,864.39/388,060.54
  6. Step 6: Final answer
    x = 366,230.87

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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.