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Finding the Fourth Proportional to 228,230.52, 342,363.59 and 76,428.16

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Solution

The fourth proportional to 228,230.52, 342,363.59 and 76,428.16 is: 114,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,230.52 : 342,363.59 = 76,428.16 : x
  2. Step 2: Convert to fraction form
    228,230.52/342,363.59 = 76,428.16/x
  3. Step 3: Cross multiply
    228,230.52x = 342,363.59 × 76,428.16
  4. Step 4: Simplify right side
    228,230.52x = 26,166,220,638.95
  5. Step 5: Solve for x
    x = 26,166,220,638.95/228,230.52
  6. Step 6: Final answer
    x = 114,648.21

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1.5x scale

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.