Home / 356,834.81-492,386.78-195,647.45

Finding the Fourth Proportional to 356,834.81, 492,386.78 and 195,647.45

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Solution

The fourth proportional to 356,834.81, 492,386.78 and 195,647.45 is: 269,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,834.81 : 492,386.78 = 195,647.45 : x
  2. Step 2: Convert to fraction form
    356,834.81/492,386.78 = 195,647.45/x
  3. Step 3: Cross multiply
    356,834.81x = 492,386.78 × 195,647.45
  4. Step 4: Simplify right side
    356,834.81x = 96,334,215,947.90
  5. Step 5: Solve for x
    x = 96,334,215,947.90/356,834.81
  6. Step 6: Final answer
    x = 269,968.66

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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.