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Finding the Fourth Proportional to 388,145.00, 535,655.82 and 216,052.04

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Solution

The fourth proportional to 388,145.00, 535,655.82 and 216,052.04 is: 298,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,145.00 : 535,655.82 = 216,052.04 : x
  2. Step 2: Convert to fraction form
    388,145.00/535,655.82 = 216,052.04/x
  3. Step 3: Cross multiply
    388,145.00x = 535,655.82 × 216,052.04
  4. Step 4: Simplify right side
    388,145.00x = 115,729,533,582.92
  5. Step 5: Solve for x
    x = 115,729,533,582.92/388,145.00
  6. Step 6: Final answer
    x = 298,160.57

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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.