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Finding the Fourth Proportional to 150,343.69, 207,468.88 and 85,816.26

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Solution

The fourth proportional to 150,343.69, 207,468.88 and 85,816.26 is: 118,423.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,343.69 : 207,468.88 = 85,816.26 : x
  2. Step 2: Convert to fraction form
    150,343.69/207,468.88 = 85,816.26/x
  3. Step 3: Cross multiply
    150,343.69x = 207,468.88 × 85,816.26
  4. Step 4: Simplify right side
    150,343.69x = 17,804,201,881.56
  5. Step 5: Solve for x
    x = 17,804,201,881.56/150,343.69
  6. Step 6: Final answer
    x = 118,423.34

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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.