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Finding the Fourth Proportional to 448,376.63, 618,728.76 and 252,172.49

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Solution

The fourth proportional to 448,376.63, 618,728.76 and 252,172.49 is: 347,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,376.63 : 618,728.76 = 252,172.49 : x
  2. Step 2: Convert to fraction form
    448,376.63/618,728.76 = 252,172.49/x
  3. Step 3: Cross multiply
    448,376.63x = 618,728.76 × 252,172.49
  4. Step 4: Simplify right side
    448,376.63x = 156,026,368,950.17
  5. Step 5: Solve for x
    x = 156,026,368,950.17/448,376.63
  6. Step 6: Final answer
    x = 347,980.60

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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.