Home / 212,205.08-318,307.66-54,433.52

Finding the Fourth Proportional to 212,205.08, 318,307.66 and 54,433.52

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Solution

The fourth proportional to 212,205.08, 318,307.66 and 54,433.52 is: 81,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,205.08 : 318,307.66 = 54,433.52 : x
  2. Step 2: Convert to fraction form
    212,205.08/318,307.66 = 54,433.52/x
  3. Step 3: Cross multiply
    212,205.08x = 318,307.66 × 54,433.52
  4. Step 4: Simplify right side
    212,205.08x = 17,326,606,376.76
  5. Step 5: Solve for x
    x = 17,326,606,376.76/212,205.08
  6. Step 6: Final answer
    x = 81,650.29

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1.5x scale

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.