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Finding the Fourth Proportional to 228,306.24, 315,041.16 and 154,568.68

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Solution

The fourth proportional to 228,306.24, 315,041.16 and 154,568.68 is: 213,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,306.24 : 315,041.16 = 154,568.68 : x
  2. Step 2: Convert to fraction form
    228,306.24/315,041.16 = 154,568.68/x
  3. Step 3: Cross multiply
    228,306.24x = 315,041.16 × 154,568.68
  4. Step 4: Simplify right side
    228,306.24x = 48,695,496,038.90
  5. Step 5: Solve for x
    x = 48,695,496,038.90/228,306.24
  6. Step 6: Final answer
    x = 213,290.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.