Home / 492,120.77-738,111.05-155,117.60

Finding the Fourth Proportional to 492,120.77, 738,111.05 and 155,117.60

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Solution

The fourth proportional to 492,120.77, 738,111.05 and 155,117.60 is: 232,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,120.77 : 738,111.05 = 155,117.60 : x
  2. Step 2: Convert to fraction form
    492,120.77/738,111.05 = 155,117.60/x
  3. Step 3: Cross multiply
    492,120.77x = 738,111.05 × 155,117.60
  4. Step 4: Simplify right side
    492,120.77x = 114,494,013,833.89
  5. Step 5: Solve for x
    x = 114,494,013,833.89/492,120.77
  6. Step 6: Final answer
    x = 232,654.30

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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.