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Finding the Fourth Proportional to 282,987.15, 424,334.65 and 83,281.60

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Solution

The fourth proportional to 282,987.15, 424,334.65 and 83,281.60 is: 124,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,987.15 : 424,334.65 = 83,281.60 : x
  2. Step 2: Convert to fraction form
    282,987.15/424,334.65 = 83,281.60/x
  3. Step 3: Cross multiply
    282,987.15x = 424,334.65 × 83,281.60
  4. Step 4: Simplify right side
    282,987.15x = 35,339,268,587.44
  5. Step 5: Solve for x
    x = 35,339,268,587.44/282,987.15
  6. Step 6: Final answer
    x = 124,879.41

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1.5x scale

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.