Home / 345,577.98-518,330.11-120,942.70

Finding the Fourth Proportional to 345,577.98, 518,330.11 and 120,942.70

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Solution

The fourth proportional to 345,577.98, 518,330.11 and 120,942.70 is: 181,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,577.98 : 518,330.11 = 120,942.70 : x
  2. Step 2: Convert to fraction form
    345,577.98/518,330.11 = 120,942.70/x
  3. Step 3: Cross multiply
    345,577.98x = 518,330.11 × 120,942.70
  4. Step 4: Simplify right side
    345,577.98x = 62,688,242,994.70
  5. Step 5: Solve for x
    x = 62,688,242,994.70/345,577.98
  6. Step 6: Final answer
    x = 181,401.15

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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.