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Finding the Fourth Proportional to 210,522.89, 290,521.65 and 113,726.77

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Solution

The fourth proportional to 210,522.89, 290,521.65 and 113,726.77 is: 156,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,522.89 : 290,521.65 = 113,726.77 : x
  2. Step 2: Convert to fraction form
    210,522.89/290,521.65 = 113,726.77/x
  3. Step 3: Cross multiply
    210,522.89x = 290,521.65 × 113,726.77
  4. Step 4: Simplify right side
    210,522.89x = 33,040,088,869.57
  5. Step 5: Solve for x
    x = 33,040,088,869.57/210,522.89
  6. Step 6: Final answer
    x = 156,942.98

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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.