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Finding the Fourth Proportional to 425,035.78, 637,257.74 and 188,250.10

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Solution

The fourth proportional to 425,035.78, 637,257.74 and 188,250.10 is: 282,244.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,035.78 : 637,257.74 = 188,250.10 : x
  2. Step 2: Convert to fraction form
    425,035.78/637,257.74 = 188,250.10/x
  3. Step 3: Cross multiply
    425,035.78x = 637,257.74 × 188,250.10
  4. Step 4: Simplify right side
    425,035.78x = 119,963,833,280.77
  5. Step 5: Solve for x
    x = 119,963,833,280.77/425,035.78
  6. Step 6: Final answer
    x = 282,244.08

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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.