Home / 345,918.34-518,834.58-93,218.59

Finding the Fourth Proportional to 345,918.34, 518,834.58 and 93,218.59

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Solution

The fourth proportional to 345,918.34, 518,834.58 and 93,218.59 is: 139,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,918.34 : 518,834.58 = 93,218.59 : x
  2. Step 2: Convert to fraction form
    345,918.34/518,834.58 = 93,218.59/x
  3. Step 3: Cross multiply
    345,918.34x = 518,834.58 × 93,218.59
  4. Step 4: Simplify right side
    345,918.34x = 48,365,027,990.84
  5. Step 5: Solve for x
    x = 48,365,027,990.84/345,918.34
  6. Step 6: Final answer
    x = 139,816.32

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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.