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Finding the Fourth Proportional to 210,737.91, 290,818.30 and 115,244.67

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Solution

The fourth proportional to 210,737.91, 290,818.30 and 115,244.67 is: 159,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,737.91 : 290,818.30 = 115,244.67 : x
  2. Step 2: Convert to fraction form
    210,737.91/290,818.30 = 115,244.67/x
  3. Step 3: Cross multiply
    210,737.91x = 290,818.30 × 115,244.67
  4. Step 4: Simplify right side
    210,737.91x = 33,515,259,013.46
  5. Step 5: Solve for x
    x = 33,515,259,013.46/210,737.91
  6. Step 6: Final answer
    x = 159,037.64

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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.