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Finding the Fourth Proportional to 228,294.84, 315,019.28 and 131,530.35

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Solution

The fourth proportional to 228,294.84, 315,019.28 and 131,530.35 is: 181,495.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,294.84 : 315,019.28 = 131,530.35 : x
  2. Step 2: Convert to fraction form
    228,294.84/315,019.28 = 131,530.35/x
  3. Step 3: Cross multiply
    228,294.84x = 315,019.28 × 131,530.35
  4. Step 4: Simplify right side
    228,294.84x = 41,434,595,497.50
  5. Step 5: Solve for x
    x = 41,434,595,497.50/228,294.84
  6. Step 6: Final answer
    x = 181,495.98

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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.