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Finding the Fourth Proportional to 340,749, 470,236.83 and 187,792.70

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Solution

The fourth proportional to 340,749, 470,236.83 and 187,792.70 is: 259,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,749 : 470,236.83 = 187,792.70 : x
  2. Step 2: Convert to fraction form
    340,749/470,236.83 = 187,792.70/x
  3. Step 3: Cross multiply
    340,749x = 470,236.83 × 187,792.70
  4. Step 4: Simplify right side
    340,749x = 88,307,042,916.50
  5. Step 5: Solve for x
    x = 88,307,042,916.50/340,749
  6. Step 6: Final answer
    x = 259,155.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.