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Finding the Fourth Proportional to 152,447.26, 210,377.20 and 85,379.26

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Solution

The fourth proportional to 152,447.26, 210,377.20 and 85,379.26 is: 117,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,447.26 : 210,377.20 = 85,379.26 : x
  2. Step 2: Convert to fraction form
    152,447.26/210,377.20 = 85,379.26/x
  3. Step 3: Cross multiply
    152,447.26x = 210,377.20 × 85,379.26
  4. Step 4: Simplify right side
    152,447.26x = 17,961,849,656.87
  5. Step 5: Solve for x
    x = 17,961,849,656.87/152,447.26
  6. Step 6: Final answer
    x = 117,823.37

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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.