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Finding the Fourth Proportional to 303,398.64, 455,688.54 and 247,280.22

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Solution

The fourth proportional to 303,398.64, 455,688.54 and 247,280.22 is: 371,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,398.64 : 455,688.54 = 247,280.22 : x
  2. Step 2: Convert to fraction form
    303,398.64/455,688.54 = 247,280.22/x
  3. Step 3: Cross multiply
    303,398.64x = 455,688.54 × 247,280.22
  4. Step 4: Simplify right side
    303,398.64x = 112,682,762,422.68
  5. Step 5: Solve for x
    x = 112,682,762,422.68/303,398.64
  6. Step 6: Final answer
    x = 371,401.67

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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.