Home / 211,531.51-317,298.35-71,291.35

Finding the Fourth Proportional to 211,531.51, 317,298.35 and 71,291.35

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Solution

The fourth proportional to 211,531.51, 317,298.35 and 71,291.35 is: 106,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,531.51 : 317,298.35 = 71,291.35 : x
  2. Step 2: Convert to fraction form
    211,531.51/317,298.35 = 71,291.35/x
  3. Step 3: Cross multiply
    211,531.51x = 317,298.35 × 71,291.35
  4. Step 4: Simplify right side
    211,531.51x = 22,620,626,574.57
  5. Step 5: Solve for x
    x = 22,620,626,574.57/211,531.51
  6. Step 6: Final answer
    x = 106,937.39

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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.