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Finding the Fourth Proportional to 248,619.70, 372,820.20 and 98,810.20

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Solution

The fourth proportional to 248,619.70, 372,820.20 and 98,810.20 is: 148,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,619.70 : 372,820.20 = 98,810.20 : x
  2. Step 2: Convert to fraction form
    248,619.70/372,820.20 = 98,810.20/x
  3. Step 3: Cross multiply
    248,619.70x = 372,820.20 × 98,810.20
  4. Step 4: Simplify right side
    248,619.70x = 36,838,438,526.04
  5. Step 5: Solve for x
    x = 36,838,438,526.04/248,619.70
  6. Step 6: Final answer
    x = 148,171.84

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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.