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Finding the Fourth Proportional to 448,384.50, 618,783.57 and 247,193.46

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Solution

The fourth proportional to 448,384.50, 618,783.57 and 247,193.46 is: 341,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,384.50 : 618,783.57 = 247,193.46 : x
  2. Step 2: Convert to fraction form
    448,384.50/618,783.57 = 247,193.46/x
  3. Step 3: Cross multiply
    448,384.50x = 618,783.57 × 247,193.46
  4. Step 4: Simplify right side
    448,384.50x = 152,959,251,659.45
  5. Step 5: Solve for x
    x = 152,959,251,659.45/448,384.50
  6. Step 6: Final answer
    x = 341,134.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.