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Finding the Fourth Proportional to 448,368.64, 618,748.16 and 247,168

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Solution

The fourth proportional to 448,368.64, 618,748.16 and 247,168 is: 341,091.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,368.64 : 618,748.16 = 247,168 : x
  2. Step 2: Convert to fraction form
    448,368.64/618,748.16 = 247,168/x
  3. Step 3: Cross multiply
    448,368.64x = 618,748.16 × 247,168
  4. Step 4: Simplify right side
    448,368.64x = 152,934,745,210.88
  5. Step 5: Solve for x
    x = 152,934,745,210.88/448,368.64
  6. Step 6: Final answer
    x = 341,091.53

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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.