Home / 287,914.68-432,003.24-147,771.72

Finding the Fourth Proportional to 287,914.68, 432,003.24 and 147,771.72

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Solution

The fourth proportional to 287,914.68, 432,003.24 and 147,771.72 is: 221,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,914.68 : 432,003.24 = 147,771.72 : x
  2. Step 2: Convert to fraction form
    287,914.68/432,003.24 = 147,771.72/x
  3. Step 3: Cross multiply
    287,914.68x = 432,003.24 × 147,771.72
  4. Step 4: Simplify right side
    287,914.68x = 63,837,861,820.37
  5. Step 5: Solve for x
    x = 63,837,861,820.37/287,914.68
  6. Step 6: Final answer
    x = 221,724.93

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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.