Home / 287,115.46-430,356.04-118,542.85

Finding the Fourth Proportional to 287,115.46, 430,356.04 and 118,542.85

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Solution

The fourth proportional to 287,115.46, 430,356.04 and 118,542.85 is: 177,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,115.46 : 430,356.04 = 118,542.85 : x
  2. Step 2: Convert to fraction form
    287,115.46/430,356.04 = 118,542.85/x
  3. Step 3: Cross multiply
    287,115.46x = 430,356.04 × 118,542.85
  4. Step 4: Simplify right side
    287,115.46x = 51,015,630,124.07
  5. Step 5: Solve for x
    x = 51,015,630,124.07/287,115.46
  6. Step 6: Final answer
    x = 177,683.33

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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.