Home / 287,784.45-431,430.53-110,418.75

Finding the Fourth Proportional to 287,784.45, 431,430.53 and 110,418.75

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Solution

The fourth proportional to 287,784.45, 431,430.53 and 110,418.75 is: 165,533.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,784.45 : 431,430.53 = 110,418.75 : x
  2. Step 2: Convert to fraction form
    287,784.45/431,430.53 = 110,418.75/x
  3. Step 3: Cross multiply
    287,784.45x = 431,430.53 × 110,418.75
  4. Step 4: Simplify right side
    287,784.45x = 47,638,019,282.34
  5. Step 5: Solve for x
    x = 47,638,019,282.34/287,784.45
  6. Step 6: Final answer
    x = 165,533.68

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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.