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Finding the Fourth Proportional to 492,124.28, 738,116.28 and 155,121.10

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Solution

The fourth proportional to 492,124.28, 738,116.28 and 155,121.10 is: 232,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,124.28 : 738,116.28 = 155,121.10 : x
  2. Step 2: Convert to fraction form
    492,124.28/738,116.28 = 155,121.10/x
  3. Step 3: Cross multiply
    492,124.28x = 738,116.28 × 155,121.10
  4. Step 4: Simplify right side
    492,124.28x = 114,497,409,281.51
  5. Step 5: Solve for x
    x = 114,497,409,281.51/492,124.28
  6. Step 6: Final answer
    x = 232,659.54

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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.