Home / 211,439.49-317,160.29-53,667.99

Finding the Fourth Proportional to 211,439.49, 317,160.29 and 53,667.99

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Solution

The fourth proportional to 211,439.49, 317,160.29 and 53,667.99 is: 80,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,439.49 : 317,160.29 = 53,667.99 : x
  2. Step 2: Convert to fraction form
    211,439.49/317,160.29 = 53,667.99/x
  3. Step 3: Cross multiply
    211,439.49x = 317,160.29 × 53,667.99
  4. Step 4: Simplify right side
    211,439.49x = 17,021,355,272.12
  5. Step 5: Solve for x
    x = 17,021,355,272.12/211,439.49
  6. Step 6: Final answer
    x = 80,502.25

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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.