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Finding the Fourth Proportional to 340,007.76, 510,005.88 and 118,386

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Solution

The fourth proportional to 340,007.76, 510,005.88 and 118,386 is: 177,576.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,007.76 : 510,005.88 = 118,386 : x
  2. Step 2: Convert to fraction form
    340,007.76/510,005.88 = 118,386/x
  3. Step 3: Cross multiply
    340,007.76x = 510,005.88 × 118,386
  4. Step 4: Simplify right side
    340,007.76x = 60,377,556,109.68
  5. Step 5: Solve for x
    x = 60,377,556,109.68/340,007.76
  6. Step 6: Final answer
    x = 177,576.99

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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.