Home / 306,556.16-423,084.32-185,693.90

Finding the Fourth Proportional to 306,556.16, 423,084.32 and 185,693.90

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Solution

The fourth proportional to 306,556.16, 423,084.32 and 185,693.90 is: 256,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,556.16 : 423,084.32 = 185,693.90 : x
  2. Step 2: Convert to fraction form
    306,556.16/423,084.32 = 185,693.90/x
  3. Step 3: Cross multiply
    306,556.16x = 423,084.32 × 185,693.90
  4. Step 4: Simplify right side
    306,556.16x = 78,564,177,409.65
  5. Step 5: Solve for x
    x = 78,564,177,409.65/306,556.16
  6. Step 6: Final answer
    x = 256,279.88

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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.