Home / 211,399.81-316,767.14-163,485.72

Finding the Fourth Proportional to 211,399.81, 316,767.14 and 163,485.72

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Solution

The fourth proportional to 211,399.81, 316,767.14 and 163,485.72 is: 244,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,399.81 : 316,767.14 = 163,485.72 : x
  2. Step 2: Convert to fraction form
    211,399.81/316,767.14 = 163,485.72/x
  3. Step 3: Cross multiply
    211,399.81x = 316,767.14 × 163,485.72
  4. Step 4: Simplify right side
    211,399.81x = 51,786,903,955.24
  5. Step 5: Solve for x
    x = 51,786,903,955.24/211,399.81
  6. Step 6: Final answer
    x = 244,971.38

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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.