Home / 217,419.42-300,041.85-131,366.40

Finding the Fourth Proportional to 217,419.42, 300,041.85 and 131,366.40

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Solution

The fourth proportional to 217,419.42, 300,041.85 and 131,366.40 is: 181,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,419.42 : 300,041.85 = 131,366.40 : x
  2. Step 2: Convert to fraction form
    217,419.42/300,041.85 = 131,366.40/x
  3. Step 3: Cross multiply
    217,419.42x = 300,041.85 × 131,366.40
  4. Step 4: Simplify right side
    217,419.42x = 39,415,417,683.84
  5. Step 5: Solve for x
    x = 39,415,417,683.84/217,419.42
  6. Step 6: Final answer
    x = 181,287.48

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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.