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Finding the Fourth Proportional to 366,904.40, 549,838.20 and 255,966.80

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Solution

The fourth proportional to 366,904.40, 549,838.20 and 255,966.80 is: 383,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,904.40 : 549,838.20 = 255,966.80 : x
  2. Step 2: Convert to fraction form
    366,904.40/549,838.20 = 255,966.80/x
  3. Step 3: Cross multiply
    366,904.40x = 549,838.20 × 255,966.80
  4. Step 4: Simplify right side
    366,904.40x = 140,740,324,571.76
  5. Step 5: Solve for x
    x = 140,740,324,571.76/366,904.40
  6. Step 6: Final answer
    x = 383,588.54

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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.