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Finding the Fourth Proportional to 228,518.82, 315,355.14 and 127,916.82

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Solution

The fourth proportional to 228,518.82, 315,355.14 and 127,916.82 is: 176,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,518.82 : 315,355.14 = 127,916.82 : x
  2. Step 2: Convert to fraction form
    228,518.82/315,355.14 = 127,916.82/x
  3. Step 3: Cross multiply
    228,518.82x = 315,355.14 × 127,916.82
  4. Step 4: Simplify right side
    228,518.82x = 40,339,226,679.45
  5. Step 5: Solve for x
    x = 40,339,226,679.45/228,518.82
  6. Step 6: Final answer
    x = 176,524.75

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1.5x scale

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.