Home / 388,296.07-536,013.90-261,045.46

Finding the Fourth Proportional to 388,296.07, 536,013.90 and 261,045.46

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Solution

The fourth proportional to 388,296.07, 536,013.90 and 261,045.46 is: 360,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,296.07 : 536,013.90 = 261,045.46 : x
  2. Step 2: Convert to fraction form
    388,296.07/536,013.90 = 261,045.46/x
  3. Step 3: Cross multiply
    388,296.07x = 536,013.90 × 261,045.46
  4. Step 4: Simplify right side
    388,296.07x = 139,923,995,091.89
  5. Step 5: Solve for x
    x = 139,923,995,091.89/388,296.07
  6. Step 6: Final answer
    x = 360,353.88

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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.