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Finding the Fourth Proportional to 152,218.98, 210,057.91 and 84,238.79

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Solution

The fourth proportional to 152,218.98, 210,057.91 and 84,238.79 is: 116,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,218.98 : 210,057.91 = 84,238.79 : x
  2. Step 2: Convert to fraction form
    152,218.98/210,057.91 = 84,238.79/x
  3. Step 3: Cross multiply
    152,218.98x = 210,057.91 × 84,238.79
  4. Step 4: Simplify right side
    152,218.98x = 17,695,022,907.44
  5. Step 5: Solve for x
    x = 17,695,022,907.44/152,218.98
  6. Step 6: Final answer
    x = 116,247.15

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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.