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Finding the Fourth Proportional to 190,377.93, 285,266.47 and 70,269.56

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Solution

The fourth proportional to 190,377.93, 285,266.47 and 70,269.56 is: 105,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,377.93 : 285,266.47 = 70,269.56 : x
  2. Step 2: Convert to fraction form
    190,377.93/285,266.47 = 70,269.56/x
  3. Step 3: Cross multiply
    190,377.93x = 285,266.47 × 70,269.56
  4. Step 4: Simplify right side
    190,377.93x = 20,045,549,329.65
  5. Step 5: Solve for x
    x = 20,045,549,329.65/190,377.93
  6. Step 6: Final answer
    x = 105,293.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.