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Finding the Fourth Proportional to 355,360.10, 533,040.15 and 326,329.70

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Solution

The fourth proportional to 355,360.10, 533,040.15 and 326,329.70 is: 489,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,360.10 : 533,040.15 = 326,329.70 : x
  2. Step 2: Convert to fraction form
    355,360.10/533,040.15 = 326,329.70/x
  3. Step 3: Cross multiply
    355,360.10x = 533,040.15 × 326,329.70
  4. Step 4: Simplify right side
    355,360.10x = 173,946,832,237.46
  5. Step 5: Solve for x
    x = 173,946,832,237.46/355,360.10
  6. Step 6: Final answer
    x = 489,494.55

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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.