Home / 312,185.22-430,835.07-176,242.20

Finding the Fourth Proportional to 312,185.22, 430,835.07 and 176,242.20

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Solution

The fourth proportional to 312,185.22, 430,835.07 and 176,242.20 is: 243,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,185.22 : 430,835.07 = 176,242.20 : x
  2. Step 2: Convert to fraction form
    312,185.22/430,835.07 = 176,242.20/x
  3. Step 3: Cross multiply
    312,185.22x = 430,835.07 × 176,242.20
  4. Step 4: Simplify right side
    312,185.22x = 75,931,320,573.95
  5. Step 5: Solve for x
    x = 75,931,320,573.95/312,185.22
  6. Step 6: Final answer
    x = 243,225.23

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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.