Home / 287,647.45-431,533.47-110,154.48

Finding the Fourth Proportional to 287,647.45, 431,533.47 and 110,154.48

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Solution

The fourth proportional to 287,647.45, 431,533.47 and 110,154.48 is: 165,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,647.45 : 431,533.47 = 110,154.48 : x
  2. Step 2: Convert to fraction form
    287,647.45/431,533.47 = 110,154.48/x
  3. Step 3: Cross multiply
    287,647.45x = 431,533.47 × 110,154.48
  4. Step 4: Simplify right side
    287,647.45x = 47,535,346,212.65
  5. Step 5: Solve for x
    x = 47,535,346,212.65/287,647.45
  6. Step 6: Final answer
    x = 165,255.58

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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.