Home / 345,111.41-517,230.93-155,369.72

Finding the Fourth Proportional to 345,111.41, 517,230.93 and 155,369.72

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Solution

The fourth proportional to 345,111.41, 517,230.93 and 155,369.72 is: 232,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,111.41 : 517,230.93 = 155,369.72 : x
  2. Step 2: Convert to fraction form
    345,111.41/517,230.93 = 155,369.72/x
  3. Step 3: Cross multiply
    345,111.41x = 517,230.93 × 155,369.72
  4. Step 4: Simplify right side
    345,111.41x = 80,362,024,769.44
  5. Step 5: Solve for x
    x = 80,362,024,769.44/345,111.41
  6. Step 6: Final answer
    x = 232,858.21

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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.