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Finding the Fourth Proportional to 150,307.62, 207,424.72 and 86,649.72

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Solution

The fourth proportional to 150,307.62, 207,424.72 and 86,649.72 is: 119,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,307.62 : 207,424.72 = 86,649.72 : x
  2. Step 2: Convert to fraction form
    150,307.62/207,424.72 = 86,649.72/x
  3. Step 3: Cross multiply
    150,307.62x = 207,424.72 × 86,649.72
  4. Step 4: Simplify right side
    150,307.62x = 17,973,293,909.08
  5. Step 5: Solve for x
    x = 17,973,293,909.08/150,307.62
  6. Step 6: Final answer
    x = 119,576.73

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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.