Home / 287,110.22-430,348.16-118,537.61

Finding the Fourth Proportional to 287,110.22, 430,348.16 and 118,537.61

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Solution

The fourth proportional to 287,110.22, 430,348.16 and 118,537.61 is: 177,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,110.22 : 430,348.16 = 118,537.61 : x
  2. Step 2: Convert to fraction form
    287,110.22/430,348.16 = 118,537.61/x
  3. Step 3: Cross multiply
    287,110.22x = 430,348.16 × 118,537.61
  4. Step 4: Simplify right side
    287,110.22x = 51,012,439,609.87
  5. Step 5: Solve for x
    x = 51,012,439,609.87/287,110.22
  6. Step 6: Final answer
    x = 177,675.46

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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.