Home / 217,949.81-300,795.93-127,328.42

Finding the Fourth Proportional to 217,949.81, 300,795.93 and 127,328.42

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Solution

The fourth proportional to 217,949.81, 300,795.93 and 127,328.42 is: 175,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,949.81 : 300,795.93 = 127,328.42 : x
  2. Step 2: Convert to fraction form
    217,949.81/300,795.93 = 127,328.42/x
  3. Step 3: Cross multiply
    217,949.81x = 300,795.93 × 127,328.42
  4. Step 4: Simplify right side
    217,949.81x = 38,299,871,261.32
  5. Step 5: Solve for x
    x = 38,299,871,261.32/217,949.81
  6. Step 6: Final answer
    x = 175,727.94

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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.