Home / 388,917.82-583,395.28-189,000.03

Finding the Fourth Proportional to 388,917.82, 583,395.28 and 189,000.03

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Solution

The fourth proportional to 388,917.82, 583,395.28 and 189,000.03 is: 283,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,917.82 : 583,395.28 = 189,000.03 : x
  2. Step 2: Convert to fraction form
    388,917.82/583,395.28 = 189,000.03/x
  3. Step 3: Cross multiply
    388,917.82x = 583,395.28 × 189,000.03
  4. Step 4: Simplify right side
    388,917.82x = 110,261,727,137.09
  5. Step 5: Solve for x
    x = 110,261,727,137.09/388,917.82
  6. Step 6: Final answer
    x = 283,509.06

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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.