Home / 287,928.03-431,975.06-88,277.88

Finding the Fourth Proportional to 287,928.03, 431,975.06 and 88,277.88

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Solution

The fourth proportional to 287,928.03, 431,975.06 and 88,277.88 is: 132,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,928.03 : 431,975.06 = 88,277.88 : x
  2. Step 2: Convert to fraction form
    287,928.03/431,975.06 = 88,277.88/x
  3. Step 3: Cross multiply
    287,928.03x = 431,975.06 × 88,277.88
  4. Step 4: Simplify right side
    287,928.03x = 38,133,842,068.28
  5. Step 5: Solve for x
    x = 38,133,842,068.28/287,928.03
  6. Step 6: Final answer
    x = 132,442.27

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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.