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Finding the Fourth Proportional to 307,461.98, 424,299.10 and 169,645.67

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Solution

The fourth proportional to 307,461.98, 424,299.10 and 169,645.67 is: 234,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,461.98 : 424,299.10 = 169,645.67 : x
  2. Step 2: Convert to fraction form
    307,461.98/424,299.10 = 169,645.67/x
  3. Step 3: Cross multiply
    307,461.98x = 424,299.10 × 169,645.67
  4. Step 4: Simplify right side
    307,461.98x = 71,980,505,099.90
  5. Step 5: Solve for x
    x = 71,980,505,099.90/307,461.98
  6. Step 6: Final answer
    x = 234,111.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.