Home / 287,904.07-431,840.52-88,225.03

Finding the Fourth Proportional to 287,904.07, 431,840.52 and 88,225.03

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Solution

The fourth proportional to 287,904.07, 431,840.52 and 88,225.03 is: 132,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,904.07 : 431,840.52 = 88,225.03 : x
  2. Step 2: Convert to fraction form
    287,904.07/431,840.52 = 88,225.03/x
  3. Step 3: Cross multiply
    287,904.07x = 431,840.52 × 88,225.03
  4. Step 4: Simplify right side
    287,904.07x = 38,099,140,231.89
  5. Step 5: Solve for x
    x = 38,099,140,231.89/287,904.07
  6. Step 6: Final answer
    x = 132,332.76

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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.