Home / 345,905.10-518,818.74-93,204.30

Finding the Fourth Proportional to 345,905.10, 518,818.74 and 93,204.30

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Solution

The fourth proportional to 345,905.10, 518,818.74 and 93,204.30 is: 139,795.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,905.10 : 518,818.74 = 93,204.30 : x
  2. Step 2: Convert to fraction form
    345,905.10/518,818.74 = 93,204.30/x
  3. Step 3: Cross multiply
    345,905.10x = 518,818.74 × 93,204.30
  4. Step 4: Simplify right side
    345,905.10x = 48,356,137,488.58
  5. Step 5: Solve for x
    x = 48,356,137,488.58/345,905.10
  6. Step 6: Final answer
    x = 139,795.97

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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.