Home / 384,078.20-576,117.30-103,623.80

Finding the Fourth Proportional to 384,078.20, 576,117.30 and 103,623.80

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Solution

The fourth proportional to 384,078.20, 576,117.30 and 103,623.80 is: 155,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,078.20 : 576,117.30 = 103,623.80 : x
  2. Step 2: Convert to fraction form
    384,078.20/576,117.30 = 103,623.80/x
  3. Step 3: Cross multiply
    384,078.20x = 576,117.30 × 103,623.80
  4. Step 4: Simplify right side
    384,078.20x = 59,699,463,871.74
  5. Step 5: Solve for x
    x = 59,699,463,871.74/384,078.20
  6. Step 6: Final answer
    x = 155,435.70

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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.