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Finding the Fourth Proportional to 324,417.60, 486,280.80 and 124,660.80

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Solution

The fourth proportional to 324,417.60, 486,280.80 and 124,660.80 is: 186,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,417.60 : 486,280.80 = 124,660.80 : x
  2. Step 2: Convert to fraction form
    324,417.60/486,280.80 = 124,660.80/x
  3. Step 3: Cross multiply
    324,417.60x = 486,280.80 × 124,660.80
  4. Step 4: Simplify right side
    324,417.60x = 60,620,153,552.64
  5. Step 5: Solve for x
    x = 60,620,153,552.64/324,417.60
  6. Step 6: Final answer
    x = 186,858.40

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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.