Home / 287,557.40-431,336.10-182,840.60

Finding the Fourth Proportional to 287,557.40, 431,336.10 and 182,840.60

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Solution

The fourth proportional to 287,557.40, 431,336.10 and 182,840.60 is: 274,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,557.40 : 431,336.10 = 182,840.60 : x
  2. Step 2: Convert to fraction form
    287,557.40/431,336.10 = 182,840.60/x
  3. Step 3: Cross multiply
    287,557.40x = 431,336.10 × 182,840.60
  4. Step 4: Simplify right side
    287,557.40x = 78,865,751,325.66
  5. Step 5: Solve for x
    x = 78,865,751,325.66/287,557.40
  6. Step 6: Final answer
    x = 274,260.90

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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.