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Finding the Fourth Proportional to 340,020.76, 510,025.38 and 118,399

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Solution

The fourth proportional to 340,020.76, 510,025.38 and 118,399 is: 177,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,020.76 : 510,025.38 = 118,399 : x
  2. Step 2: Convert to fraction form
    340,020.76/510,025.38 = 118,399/x
  3. Step 3: Cross multiply
    340,020.76x = 510,025.38 × 118,399
  4. Step 4: Simplify right side
    340,020.76x = 60,386,494,966.62
  5. Step 5: Solve for x
    x = 60,386,494,966.62/340,020.76
  6. Step 6: Final answer
    x = 177,596.49

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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.