Home / 278,762.37-418,171.14-89,175.12

Finding the Fourth Proportional to 278,762.37, 418,171.14 and 89,175.12

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Solution

The fourth proportional to 278,762.37, 418,171.14 and 89,175.12 is: 133,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,762.37 : 418,171.14 = 89,175.12 : x
  2. Step 2: Convert to fraction form
    278,762.37/418,171.14 = 89,175.12/x
  3. Step 3: Cross multiply
    278,762.37x = 418,171.14 × 89,175.12
  4. Step 4: Simplify right side
    278,762.37x = 37,290,461,590.04
  5. Step 5: Solve for x
    x = 37,290,461,590.04/278,762.37
  6. Step 6: Final answer
    x = 133,771.50

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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.