Home / 287,867.09-431,374.18-116,880.88

Finding the Fourth Proportional to 287,867.09, 431,374.18 and 116,880.88

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Solution

The fourth proportional to 287,867.09, 431,374.18 and 116,880.88 is: 175,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,867.09 : 431,374.18 = 116,880.88 : x
  2. Step 2: Convert to fraction form
    287,867.09/431,374.18 = 116,880.88/x
  3. Step 3: Cross multiply
    287,867.09x = 431,374.18 × 116,880.88
  4. Step 4: Simplify right side
    287,867.09x = 50,419,394,638.26
  5. Step 5: Solve for x
    x = 50,419,394,638.26/287,867.09
  6. Step 6: Final answer
    x = 175,148.17

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1.5x scale

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.