Home / 345,942.09-518,870.21-93,242.34

Finding the Fourth Proportional to 345,942.09, 518,870.21 and 93,242.34

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Solution

The fourth proportional to 345,942.09, 518,870.21 and 93,242.34 is: 139,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,942.09 : 518,870.21 = 93,242.34 : x
  2. Step 2: Convert to fraction form
    345,942.09/518,870.21 = 93,242.34/x
  3. Step 3: Cross multiply
    345,942.09x = 518,870.21 × 93,242.34
  4. Step 4: Simplify right side
    345,942.09x = 48,380,672,070.48
  5. Step 5: Solve for x
    x = 48,380,672,070.48/345,942.09
  6. Step 6: Final answer
    x = 139,851.94

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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.