Home / 205,048.20-306,881.10-188,459.40

Finding the Fourth Proportional to 205,048.20, 306,881.10 and 188,459.40

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Solution

The fourth proportional to 205,048.20, 306,881.10 and 188,459.40 is: 282,053.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,048.20 : 306,881.10 = 188,459.40 : x
  2. Step 2: Convert to fraction form
    205,048.20/306,881.10 = 188,459.40/x
  3. Step 3: Cross multiply
    205,048.20x = 306,881.10 × 188,459.40
  4. Step 4: Simplify right side
    205,048.20x = 57,834,627,977.34
  5. Step 5: Solve for x
    x = 57,834,627,977.34/205,048.20
  6. Step 6: Final answer
    x = 282,053.82

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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.