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Finding the Fourth Proportional to 255,706.80, 383,599.61 and 87,187.71

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Solution

The fourth proportional to 255,706.80, 383,599.61 and 87,187.71 is: 130,795.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,706.80 : 383,599.61 = 87,187.71 : x
  2. Step 2: Convert to fraction form
    255,706.80/383,599.61 = 87,187.71/x
  3. Step 3: Cross multiply
    255,706.80x = 383,599.61 × 87,187.71
  4. Step 4: Simplify right side
    255,706.80x = 33,445,171,552.79
  5. Step 5: Solve for x
    x = 33,445,171,552.79/255,706.80
  6. Step 6: Final answer
    x = 130,795.00

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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.