Home / 287,573.40-431,360.10-182,856.60

Finding the Fourth Proportional to 287,573.40, 431,360.10 and 182,856.60

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Solution

The fourth proportional to 287,573.40, 431,360.10 and 182,856.60 is: 274,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,573.40 : 431,360.10 = 182,856.60 : x
  2. Step 2: Convert to fraction form
    287,573.40/431,360.10 = 182,856.60/x
  3. Step 3: Cross multiply
    287,573.40x = 431,360.10 × 182,856.60
  4. Step 4: Simplify right side
    287,573.40x = 78,877,041,261.66
  5. Step 5: Solve for x
    x = 78,877,041,261.66/287,573.40
  6. Step 6: Final answer
    x = 274,284.90

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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.