Home / 285,440.08-428,220.24-107,943.16

Finding the Fourth Proportional to 285,440.08, 428,220.24 and 107,943.16

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Solution

The fourth proportional to 285,440.08, 428,220.24 and 107,943.16 is: 161,937.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,440.08 : 428,220.24 = 107,943.16 : x
  2. Step 2: Convert to fraction form
    285,440.08/428,220.24 = 107,943.16/x
  3. Step 3: Cross multiply
    285,440.08x = 428,220.24 × 107,943.16
  4. Step 4: Simplify right side
    285,440.08x = 46,223,445,881.56
  5. Step 5: Solve for x
    x = 46,223,445,881.56/285,440.08
  6. Step 6: Final answer
    x = 161,937.48

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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.