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Finding the Fourth Proportional to 492,401.44, 738,325.12 and 155,379.28

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Solution

The fourth proportional to 492,401.44, 738,325.12 and 155,379.28 is: 232,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,401.44 : 738,325.12 = 155,379.28 : x
  2. Step 2: Convert to fraction form
    492,401.44/738,325.12 = 155,379.28/x
  3. Step 3: Cross multiply
    492,401.44x = 738,325.12 × 155,379.28
  4. Step 4: Simplify right side
    492,401.44x = 114,720,425,551.51
  5. Step 5: Solve for x
    x = 114,720,425,551.51/492,401.44
  6. Step 6: Final answer
    x = 232,981.50

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1.5x scale

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.