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Finding the Fourth Proportional to 425,403.15, 637,503.30 and 235,947

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Solution

The fourth proportional to 425,403.15, 637,503.30 and 235,947 is: 353,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,403.15 : 637,503.30 = 235,947 : x
  2. Step 2: Convert to fraction form
    425,403.15/637,503.30 = 235,947/x
  3. Step 3: Cross multiply
    425,403.15x = 637,503.30 × 235,947
  4. Step 4: Simplify right side
    425,403.15x = 150,416,991,125.10
  5. Step 5: Solve for x
    x = 150,416,991,125.10/425,403.15
  6. Step 6: Final answer
    x = 353,586.92

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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.