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Finding the Fourth Proportional to 223,507.80, 335,261.70 and 147,400.20

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Solution

The fourth proportional to 223,507.80, 335,261.70 and 147,400.20 is: 221,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,507.80 : 335,261.70 = 147,400.20 : x
  2. Step 2: Convert to fraction form
    223,507.80/335,261.70 = 147,400.20/x
  3. Step 3: Cross multiply
    223,507.80x = 335,261.70 × 147,400.20
  4. Step 4: Simplify right side
    223,507.80x = 49,417,641,632.34
  5. Step 5: Solve for x
    x = 49,417,641,632.34/223,507.80
  6. Step 6: Final answer
    x = 221,100.30

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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.