Home / 305,553.33-458,182.35-128,012.67

Finding the Fourth Proportional to 305,553.33, 458,182.35 and 128,012.67

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Solution

The fourth proportional to 305,553.33, 458,182.35 and 128,012.67 is: 191,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,553.33 : 458,182.35 = 128,012.67 : x
  2. Step 2: Convert to fraction form
    305,553.33/458,182.35 = 128,012.67/x
  3. Step 3: Cross multiply
    305,553.33x = 458,182.35 × 128,012.67
  4. Step 4: Simplify right side
    305,553.33x = 58,653,145,970.37
  5. Step 5: Solve for x
    x = 58,653,145,970.37/305,553.33
  6. Step 6: Final answer
    x = 191,957.15

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1.5x scale

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.