Home / 210,356.80-290,304.20-114,872.40

Finding the Fourth Proportional to 210,356.80, 290,304.20 and 114,872.40

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Solution

The fourth proportional to 210,356.80, 290,304.20 and 114,872.40 is: 158,530.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,356.80 : 290,304.20 = 114,872.40 : x
  2. Step 2: Convert to fraction form
    210,356.80/290,304.20 = 114,872.40/x
  3. Step 3: Cross multiply
    210,356.80x = 290,304.20 × 114,872.40
  4. Step 4: Simplify right side
    210,356.80x = 33,347,940,184.08
  5. Step 5: Solve for x
    x = 33,347,940,184.08/210,356.80
  6. Step 6: Final answer
    x = 158,530.36

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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.