Home / 223,320.56-308,178.55-121,347.59

Finding the Fourth Proportional to 223,320.56, 308,178.55 and 121,347.59

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Solution

The fourth proportional to 223,320.56, 308,178.55 and 121,347.59 is: 167,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,320.56 : 308,178.55 = 121,347.59 : x
  2. Step 2: Convert to fraction form
    223,320.56/308,178.55 = 121,347.59/x
  3. Step 3: Cross multiply
    223,320.56x = 308,178.55 × 121,347.59
  4. Step 4: Simplify right side
    223,320.56x = 37,396,722,942.99
  5. Step 5: Solve for x
    x = 37,396,722,942.99/223,320.56
  6. Step 6: Final answer
    x = 167,457.59

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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.