Home / 317,266.20-476,417.70-212,549.40

Finding the Fourth Proportional to 317,266.20, 476,417.70 and 212,549.40

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Solution

The fourth proportional to 317,266.20, 476,417.70 and 212,549.40 is: 319,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,266.20 : 476,417.70 = 212,549.40 : x
  2. Step 2: Convert to fraction form
    317,266.20/476,417.70 = 212,549.40/x
  3. Step 3: Cross multiply
    317,266.20x = 476,417.70 × 212,549.40
  4. Step 4: Simplify right side
    317,266.20x = 101,262,296,284.38
  5. Step 5: Solve for x
    x = 101,262,296,284.38/317,266.20
  6. Step 6: Final answer
    x = 319,171.40

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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.