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Finding the Fourth Proportional to 269,841.51, 372,378.87 and 148,980.20

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Solution

The fourth proportional to 269,841.51, 372,378.87 and 148,980.20 is: 205,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,841.51 : 372,378.87 = 148,980.20 : x
  2. Step 2: Convert to fraction form
    269,841.51/372,378.87 = 148,980.20/x
  3. Step 3: Cross multiply
    269,841.51x = 372,378.87 × 148,980.20
  4. Step 4: Simplify right side
    269,841.51x = 55,477,076,666.48
  5. Step 5: Solve for x
    x = 55,477,076,666.48/269,841.51
  6. Step 6: Final answer
    x = 205,591.34

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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.