Home / 211,740.51-317,330.41-155,316.42

Finding the Fourth Proportional to 211,740.51, 317,330.41 and 155,316.42

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Solution

The fourth proportional to 211,740.51, 317,330.41 and 155,316.42 is: 232,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,740.51 : 317,330.41 = 155,316.42 : x
  2. Step 2: Convert to fraction form
    211,740.51/317,330.41 = 155,316.42/x
  3. Step 3: Cross multiply
    211,740.51x = 317,330.41 × 155,316.42
  4. Step 4: Simplify right side
    211,740.51x = 49,286,623,238.33
  5. Step 5: Solve for x
    x = 49,286,623,238.33/211,740.51
  6. Step 6: Final answer
    x = 232,768.98

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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.