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Finding the Fourth Proportional to 152,359.99, 210,257.37 and 84,375.47

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Solution

The fourth proportional to 152,359.99, 210,257.37 and 84,375.47 is: 116,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,359.99 : 210,257.37 = 84,375.47 : x
  2. Step 2: Convert to fraction form
    152,359.99/210,257.37 = 84,375.47/x
  3. Step 3: Cross multiply
    152,359.99x = 210,257.37 × 84,375.47
  4. Step 4: Simplify right side
    152,359.99x = 17,740,564,940.36
  5. Step 5: Solve for x
    x = 17,740,564,940.36/152,359.99
  6. Step 6: Final answer
    x = 116,438.48

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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.