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Finding the Fourth Proportional to 303,600.80, 455,401.20 and 93,238.40

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Solution

The fourth proportional to 303,600.80, 455,401.20 and 93,238.40 is: 139,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,600.80 : 455,401.20 = 93,238.40 : x
  2. Step 2: Convert to fraction form
    303,600.80/455,401.20 = 93,238.40/x
  3. Step 3: Cross multiply
    303,600.80x = 455,401.20 × 93,238.40
  4. Step 4: Simplify right side
    303,600.80x = 42,460,879,246.08
  5. Step 5: Solve for x
    x = 42,460,879,246.08/303,600.80
  6. Step 6: Final answer
    x = 139,857.60

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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.