Home / 287,070.06-396,153.57-158,005.78

Finding the Fourth Proportional to 287,070.06, 396,153.57 and 158,005.78

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Solution

The fourth proportional to 287,070.06, 396,153.57 and 158,005.78 is: 218,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,070.06 : 396,153.57 = 158,005.78 : x
  2. Step 2: Convert to fraction form
    287,070.06/396,153.57 = 158,005.78/x
  3. Step 3: Cross multiply
    287,070.06x = 396,153.57 × 158,005.78
  4. Step 4: Simplify right side
    287,070.06x = 62,594,551,650.60
  5. Step 5: Solve for x
    x = 62,594,551,650.60/287,070.06
  6. Step 6: Final answer
    x = 218,046.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.