Home / 287,643.34-431,527.30-110,150.36

Finding the Fourth Proportional to 287,643.34, 431,527.30 and 110,150.36

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Solution

The fourth proportional to 287,643.34, 431,527.30 and 110,150.36 is: 165,249.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,643.34 : 431,527.30 = 110,150.36 : x
  2. Step 2: Convert to fraction form
    287,643.34/431,527.30 = 110,150.36/x
  3. Step 3: Cross multiply
    287,643.34x = 431,527.30 × 110,150.36
  4. Step 4: Simplify right side
    287,643.34x = 47,532,885,416.37
  5. Step 5: Solve for x
    x = 47,532,885,416.37/287,643.34
  6. Step 6: Final answer
    x = 165,249.39

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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.