Home / 368,707.06-553,062.34-128,819.95

Finding the Fourth Proportional to 368,707.06, 553,062.34 and 128,819.95

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Solution

The fourth proportional to 368,707.06, 553,062.34 and 128,819.95 is: 193,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,707.06 : 553,062.34 = 128,819.95 : x
  2. Step 2: Convert to fraction form
    368,707.06/553,062.34 = 128,819.95/x
  3. Step 3: Cross multiply
    368,707.06x = 553,062.34 × 128,819.95
  4. Step 4: Simplify right side
    368,707.06x = 71,245,462,985.68
  5. Step 5: Solve for x
    x = 71,245,462,985.68/368,707.06
  6. Step 6: Final answer
    x = 193,230.54

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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.