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Finding the Fourth Proportional to 425,312.54, 637,981.11 and 159,022.20

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Solution

The fourth proportional to 425,312.54, 637,981.11 and 159,022.20 is: 238,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,312.54 : 637,981.11 = 159,022.20 : x
  2. Step 2: Convert to fraction form
    425,312.54/637,981.11 = 159,022.20/x
  3. Step 3: Cross multiply
    425,312.54x = 637,981.11 × 159,022.20
  4. Step 4: Simplify right side
    425,312.54x = 101,453,162,063.07
  5. Step 5: Solve for x
    x = 101,453,162,063.07/425,312.54
  6. Step 6: Final answer
    x = 238,537.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.