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Finding the Fourth Proportional to 307,459.98, 424,296.34 and 169,643.67

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Solution

The fourth proportional to 307,459.98, 424,296.34 and 169,643.67 is: 234,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,459.98 : 424,296.34 = 169,643.67 : x
  2. Step 2: Convert to fraction form
    307,459.98/424,296.34 = 169,643.67/x
  3. Step 3: Cross multiply
    307,459.98x = 424,296.34 × 169,643.67
  4. Step 4: Simplify right side
    307,459.98x = 71,979,189,193.51
  5. Step 5: Solve for x
    x = 71,979,189,193.51/307,459.98
  6. Step 6: Final answer
    x = 234,109.13

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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.