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Finding the Fourth Proportional to 340,557.50, 510,048.93 and 328,747.70

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Solution

The fourth proportional to 340,557.50, 510,048.93 and 328,747.70 is: 492,361.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,557.50 : 510,048.93 = 328,747.70 : x
  2. Step 2: Convert to fraction form
    340,557.50/510,048.93 = 328,747.70/x
  3. Step 3: Cross multiply
    340,557.50x = 510,048.93 × 328,747.70
  4. Step 4: Simplify right side
    340,557.50x = 167,677,412,624.96
  5. Step 5: Solve for x
    x = 167,677,412,624.96/340,557.50
  6. Step 6: Final answer
    x = 492,361.53

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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.