Home / 380,977.11-525,749.85-208,897.74

Finding the Fourth Proportional to 380,977.11, 525,749.85 and 208,897.74

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Solution

The fourth proportional to 380,977.11, 525,749.85 and 208,897.74 is: 288,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,977.11 : 525,749.85 = 208,897.74 : x
  2. Step 2: Convert to fraction form
    380,977.11/525,749.85 = 208,897.74/x
  3. Step 3: Cross multiply
    380,977.11x = 525,749.85 × 208,897.74
  4. Step 4: Simplify right side
    380,977.11x = 109,827,955,470.34
  5. Step 5: Solve for x
    x = 109,827,955,470.34/380,977.11
  6. Step 6: Final answer
    x = 288,279.67

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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.