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Finding the Fourth Proportional to 447,969.89, 618,199.29 and 266,688.10

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Solution

The fourth proportional to 447,969.89, 618,199.29 and 266,688.10 is: 368,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,969.89 : 618,199.29 = 266,688.10 : x
  2. Step 2: Convert to fraction form
    447,969.89/618,199.29 = 266,688.10/x
  3. Step 3: Cross multiply
    447,969.89x = 618,199.29 × 266,688.10
  4. Step 4: Simplify right side
    447,969.89x = 164,866,391,366.83
  5. Step 5: Solve for x
    x = 164,866,391,366.83/447,969.89
  6. Step 6: Final answer
    x = 368,030.07

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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.