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Finding the Fourth Proportional to 248,128.45, 372,210.47 and 103,889.12

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Solution

The fourth proportional to 248,128.45, 372,210.47 and 103,889.12 is: 155,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,128.45 : 372,210.47 = 103,889.12 : x
  2. Step 2: Convert to fraction form
    248,128.45/372,210.47 = 103,889.12/x
  3. Step 3: Cross multiply
    248,128.45x = 372,210.47 × 103,889.12
  4. Step 4: Simplify right side
    248,128.45x = 38,668,618,183.09
  5. Step 5: Solve for x
    x = 38,668,618,183.09/248,128.45
  6. Step 6: Final answer
    x = 155,841.13

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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.