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Finding the Fourth Proportional to 169,809.80, 254,109.90 and 147,864.20

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Solution

The fourth proportional to 169,809.80, 254,109.90 and 147,864.20 is: 221,269.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,809.80 : 254,109.90 = 147,864.20 : x
  2. Step 2: Convert to fraction form
    169,809.80/254,109.90 = 147,864.20/x
  3. Step 3: Cross multiply
    169,809.80x = 254,109.90 × 147,864.20
  4. Step 4: Simplify right side
    169,809.80x = 37,573,757,075.58
  5. Step 5: Solve for x
    x = 37,573,757,075.58/169,809.80
  6. Step 6: Final answer
    x = 221,269.66

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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.