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Finding the Fourth Proportional to 425,158.30, 637,774.16 and 109,612.54

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Solution

The fourth proportional to 425,158.30, 637,774.16 and 109,612.54 is: 164,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,158.30 : 637,774.16 = 109,612.54 : x
  2. Step 2: Convert to fraction form
    425,158.30/637,774.16 = 109,612.54/x
  3. Step 3: Cross multiply
    425,158.30x = 637,774.16 × 109,612.54
  4. Step 4: Simplify right side
    425,158.30x = 69,908,045,623.97
  5. Step 5: Solve for x
    x = 69,908,045,623.97/425,158.30
  6. Step 6: Final answer
    x = 164,428.27

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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.