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Finding the Fourth Proportional to 448,173, 618,478.74 and 246,969

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Solution

The fourth proportional to 448,173, 618,478.74 and 246,969 is: 340,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,173 : 618,478.74 = 246,969 : x
  2. Step 2: Convert to fraction form
    448,173/618,478.74 = 246,969/x
  3. Step 3: Cross multiply
    448,173x = 618,478.74 × 246,969
  4. Step 4: Simplify right side
    448,173x = 152,745,075,939.06
  5. Step 5: Solve for x
    x = 152,745,075,939.06/448,173
  6. Step 6: Final answer
    x = 340,817.22

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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.