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Finding the Fourth Proportional to 345,560.18, 518,348.46 and 92,840.98

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Solution

The fourth proportional to 345,560.18, 518,348.46 and 92,840.98 is: 139,263.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,560.18 : 518,348.46 = 92,840.98 : x
  2. Step 2: Convert to fraction form
    345,560.18/518,348.46 = 92,840.98/x
  3. Step 3: Cross multiply
    345,560.18x = 518,348.46 × 92,840.98
  4. Step 4: Simplify right side
    345,560.18x = 48,123,979,007.89
  5. Step 5: Solve for x
    x = 48,123,979,007.89/345,560.18
  6. Step 6: Final answer
    x = 139,263.67

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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.