Home / 388,973.64-583,408.62-108,519.24

Finding the Fourth Proportional to 388,973.64, 583,408.62 and 108,519.24

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Solution

The fourth proportional to 388,973.64, 583,408.62 and 108,519.24 is: 162,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,973.64 : 583,408.62 = 108,519.24 : x
  2. Step 2: Convert to fraction form
    388,973.64/583,408.62 = 108,519.24/x
  3. Step 3: Cross multiply
    388,973.64x = 583,408.62 × 108,519.24
  4. Step 4: Simplify right side
    388,973.64x = 63,311,060,051.85
  5. Step 5: Solve for x
    x = 63,311,060,051.85/388,973.64
  6. Step 6: Final answer
    x = 162,764.40

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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.