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Finding the Fourth Proportional to 448,202.88, 618,512.88 and 257,211.84

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Solution

The fourth proportional to 448,202.88, 618,512.88 and 257,211.84 is: 354,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,202.88 : 618,512.88 = 257,211.84 : x
  2. Step 2: Convert to fraction form
    448,202.88/618,512.88 = 257,211.84/x
  3. Step 3: Cross multiply
    448,202.88x = 618,512.88 × 257,211.84
  4. Step 4: Simplify right side
    448,202.88x = 159,088,835,928.50
  5. Step 5: Solve for x
    x = 159,088,835,928.50/448,202.88
  6. Step 6: Final answer
    x = 354,948.27

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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.