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Finding the Fourth Proportional to 425,346.60, 637,866.30 and 214,914.60

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Solution

The fourth proportional to 425,346.60, 637,866.30 and 214,914.60 is: 322,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,346.60 : 637,866.30 = 214,914.60 : x
  2. Step 2: Convert to fraction form
    425,346.60/637,866.30 = 214,914.60/x
  3. Step 3: Cross multiply
    425,346.60x = 637,866.30 × 214,914.60
  4. Step 4: Simplify right side
    425,346.60x = 137,086,780,717.98
  5. Step 5: Solve for x
    x = 137,086,780,717.98/425,346.60
  6. Step 6: Final answer
    x = 322,294.29

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1.5x scale

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.