Home / 345,365.76-518,343.88-135,151.32

Finding the Fourth Proportional to 345,365.76, 518,343.88 and 135,151.32

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Solution

The fourth proportional to 345,365.76, 518,343.88 and 135,151.32 is: 202,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,365.76 : 518,343.88 = 135,151.32 : x
  2. Step 2: Convert to fraction form
    345,365.76/518,343.88 = 135,151.32/x
  3. Step 3: Cross multiply
    345,365.76x = 518,343.88 × 135,151.32
  4. Step 4: Simplify right side
    345,365.76x = 70,054,859,595.92
  5. Step 5: Solve for x
    x = 70,054,859,595.92/345,365.76
  6. Step 6: Final answer
    x = 202,842.52

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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.