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Finding the Fourth Proportional to 448,176, 618,482.88 and 246,972

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Solution

The fourth proportional to 448,176, 618,482.88 and 246,972 is: 340,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,176 : 618,482.88 = 246,972 : x
  2. Step 2: Convert to fraction form
    448,176/618,482.88 = 246,972/x
  3. Step 3: Cross multiply
    448,176x = 618,482.88 × 246,972
  4. Step 4: Simplify right side
    448,176x = 152,747,953,839.36
  5. Step 5: Solve for x
    x = 152,747,953,839.36/448,176
  6. Step 6: Final answer
    x = 340,821.36

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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.