Home / 380,831.56-571,389.50-203,239.87

Finding the Fourth Proportional to 380,831.56, 571,389.50 and 203,239.87

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Solution

The fourth proportional to 380,831.56, 571,389.50 and 203,239.87 is: 304,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,831.56 : 571,389.50 = 203,239.87 : x
  2. Step 2: Convert to fraction form
    380,831.56/571,389.50 = 203,239.87/x
  3. Step 3: Cross multiply
    380,831.56x = 571,389.50 × 203,239.87
  4. Step 4: Simplify right side
    380,831.56x = 116,129,127,699.37
  5. Step 5: Solve for x
    x = 116,129,127,699.37/380,831.56
  6. Step 6: Final answer
    x = 304,935.67

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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.