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Finding the Fourth Proportional to 255,549.60, 383,033.70 and 155,489.22

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Solution

The fourth proportional to 255,549.60, 383,033.70 and 155,489.22 is: 233,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,549.60 : 383,033.70 = 155,489.22 : x
  2. Step 2: Convert to fraction form
    255,549.60/383,033.70 = 155,489.22/x
  3. Step 3: Cross multiply
    255,549.60x = 383,033.70 × 155,489.22
  4. Step 4: Simplify right side
    255,549.60x = 59,557,611,246.71
  5. Step 5: Solve for x
    x = 59,557,611,246.71/255,549.60
  6. Step 6: Final answer
    x = 233,056.95

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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.