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Finding the Fourth Proportional to 448,125.96, 618,384.98 and 266,851.20

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Solution

The fourth proportional to 448,125.96, 618,384.98 and 266,851.20 is: 368,237.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,125.96 : 618,384.98 = 266,851.20 : x
  2. Step 2: Convert to fraction form
    448,125.96/618,384.98 = 266,851.20/x
  3. Step 3: Cross multiply
    448,125.96x = 618,384.98 × 266,851.20
  4. Step 4: Simplify right side
    448,125.96x = 165,016,773,974.98
  5. Step 5: Solve for x
    x = 165,016,773,974.98/448,125.96
  6. Step 6: Final answer
    x = 368,237.48

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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.