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Finding the Fourth Proportional to 228,020.70, 342,031.05 and 61,808.70

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Solution

The fourth proportional to 228,020.70, 342,031.05 and 61,808.70 is: 92,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,020.70 : 342,031.05 = 61,808.70 : x
  2. Step 2: Convert to fraction form
    228,020.70/342,031.05 = 61,808.70/x
  3. Step 3: Cross multiply
    228,020.70x = 342,031.05 × 61,808.70
  4. Step 4: Simplify right side
    228,020.70x = 21,140,494,560.14
  5. Step 5: Solve for x
    x = 21,140,494,560.14/228,020.70
  6. Step 6: Final answer
    x = 92,713.05

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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.