Home / 389,215.53-583,857.32-108,733.59

Finding the Fourth Proportional to 389,215.53, 583,857.32 and 108,733.59

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Solution

The fourth proportional to 389,215.53, 583,857.32 and 108,733.59 is: 163,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,215.53 : 583,857.32 = 108,733.59 : x
  2. Step 2: Convert to fraction form
    389,215.53/583,857.32 = 108,733.59/x
  3. Step 3: Cross multiply
    389,215.53x = 583,857.32 × 108,733.59
  4. Step 4: Simplify right side
    389,215.53x = 63,484,901,907.71
  5. Step 5: Solve for x
    x = 63,484,901,907.71/389,215.53
  6. Step 6: Final answer
    x = 163,109.89

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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.