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Finding the Fourth Proportional to 220,216.79, 303,888.99 and 124,724.16

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Solution

The fourth proportional to 220,216.79, 303,888.99 and 124,724.16 is: 172,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,216.79 : 303,888.99 = 124,724.16 : x
  2. Step 2: Convert to fraction form
    220,216.79/303,888.99 = 124,724.16/x
  3. Step 3: Cross multiply
    220,216.79x = 303,888.99 × 124,724.16
  4. Step 4: Simplify right side
    220,216.79x = 37,902,299,011.00
  5. Step 5: Solve for x
    x = 37,902,299,011.00/220,216.79
  6. Step 6: Final answer
    x = 172,113.58

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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.