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Finding the Fourth Proportional to 285,347.60, 427,920.44 and 82,901.60

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Solution

The fourth proportional to 285,347.60, 427,920.44 and 82,901.60 is: 124,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,347.60 : 427,920.44 = 82,901.60 : x
  2. Step 2: Convert to fraction form
    285,347.60/427,920.44 = 82,901.60/x
  3. Step 3: Cross multiply
    285,347.60x = 427,920.44 × 82,901.60
  4. Step 4: Simplify right side
    285,347.60x = 35,475,289,148.70
  5. Step 5: Solve for x
    x = 35,475,289,148.70/285,347.60
  6. Step 6: Final answer
    x = 124,323.07

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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.