Home / 278,420.04-384,220.18-165,265.48

Finding the Fourth Proportional to 278,420.04, 384,220.18 and 165,265.48

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Solution

The fourth proportional to 278,420.04, 384,220.18 and 165,265.48 is: 228,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,420.04 : 384,220.18 = 165,265.48 : x
  2. Step 2: Convert to fraction form
    278,420.04/384,220.18 = 165,265.48/x
  3. Step 3: Cross multiply
    278,420.04x = 384,220.18 × 165,265.48
  4. Step 4: Simplify right side
    278,420.04x = 63,498,332,473.39
  5. Step 5: Solve for x
    x = 63,498,332,473.39/278,420.04
  6. Step 6: Final answer
    x = 228,066.67

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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.