Home / 211,931.70-317,897.70-54,160.32

Finding the Fourth Proportional to 211,931.70, 317,897.70 and 54,160.32

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Solution

The fourth proportional to 211,931.70, 317,897.70 and 54,160.32 is: 81,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,931.70 : 317,897.70 = 54,160.32 : x
  2. Step 2: Convert to fraction form
    211,931.70/317,897.70 = 54,160.32/x
  3. Step 3: Cross multiply
    211,931.70x = 317,897.70 × 54,160.32
  4. Step 4: Simplify right side
    211,931.70x = 17,217,441,159.26
  5. Step 5: Solve for x
    x = 17,217,441,159.26/211,931.70
  6. Step 6: Final answer
    x = 81,240.52

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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.