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Finding the Fourth Proportional to 340,518.70, 510,000.45 and 200,550.70

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Solution

The fourth proportional to 340,518.70, 510,000.45 and 200,550.70 is: 300,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,518.70 : 510,000.45 = 200,550.70 : x
  2. Step 2: Convert to fraction form
    340,518.70/510,000.45 = 200,550.70/x
  3. Step 3: Cross multiply
    340,518.70x = 510,000.45 × 200,550.70
  4. Step 4: Simplify right side
    340,518.70x = 102,280,947,247.82
  5. Step 5: Solve for x
    x = 102,280,947,247.82/340,518.70
  6. Step 6: Final answer
    x = 300,368.08

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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.