Home / 379,277.48-523,358.34-209,501.48

Finding the Fourth Proportional to 379,277.48, 523,358.34 and 209,501.48

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Solution

The fourth proportional to 379,277.48, 523,358.34 and 209,501.48 is: 289,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,277.48 : 523,358.34 = 209,501.48 : x
  2. Step 2: Convert to fraction form
    379,277.48/523,358.34 = 209,501.48/x
  3. Step 3: Cross multiply
    379,277.48x = 523,358.34 × 209,501.48
  4. Step 4: Simplify right side
    379,277.48x = 109,644,346,800.34
  5. Step 5: Solve for x
    x = 109,644,346,800.34/379,277.48
  6. Step 6: Final answer
    x = 289,087.42

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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.