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Finding the Fourth Proportional to 350,280, 483,386.40 and 191,304

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Solution

The fourth proportional to 350,280, 483,386.40 and 191,304 is: 263,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,280 : 483,386.40 = 191,304 : x
  2. Step 2: Convert to fraction form
    350,280/483,386.40 = 191,304/x
  3. Step 3: Cross multiply
    350,280x = 483,386.40 × 191,304
  4. Step 4: Simplify right side
    350,280x = 92,473,751,865.60
  5. Step 5: Solve for x
    x = 92,473,751,865.60/350,280
  6. Step 6: Final answer
    x = 263,999.52

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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.