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Finding the Fourth Proportional to 386,293.88, 579,603.64 and 149,803.04

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Solution

The fourth proportional to 386,293.88, 579,603.64 and 149,803.04 is: 224,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,293.88 : 579,603.64 = 149,803.04 : x
  2. Step 2: Convert to fraction form
    386,293.88/579,603.64 = 149,803.04/x
  3. Step 3: Cross multiply
    386,293.88x = 579,603.64 × 149,803.04
  4. Step 4: Simplify right side
    386,293.88x = 86,826,387,267.07
  5. Step 5: Solve for x
    x = 86,826,387,267.07/386,293.88
  6. Step 6: Final answer
    x = 224,767.70

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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.