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Finding the Fourth Proportional to 389,225.28, 583,855.28 and 119,334

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Solution

The fourth proportional to 389,225.28, 583,855.28 and 119,334 is: 179,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,225.28 : 583,855.28 = 119,334 : x
  2. Step 2: Convert to fraction form
    389,225.28/583,855.28 = 119,334/x
  3. Step 3: Cross multiply
    389,225.28x = 583,855.28 × 119,334
  4. Step 4: Simplify right side
    389,225.28x = 69,673,785,983.52
  5. Step 5: Solve for x
    x = 69,673,785,983.52/389,225.28
  6. Step 6: Final answer
    x = 179,006.32

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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.