Home / 549,103.40-823,266.30-212,013.80

Finding the Fourth Proportional to 549,103.40, 823,266.30 and 212,013.80

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Solution

The fourth proportional to 549,103.40, 823,266.30 and 212,013.80 is: 317,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,103.40 : 823,266.30 = 212,013.80 : x
  2. Step 2: Convert to fraction form
    549,103.40/823,266.30 = 212,013.80/x
  3. Step 3: Cross multiply
    549,103.40x = 823,266.30 × 212,013.80
  4. Step 4: Simplify right side
    549,103.40x = 174,543,816,674.94
  5. Step 5: Solve for x
    x = 174,543,816,674.94/549,103.40
  6. Step 6: Final answer
    x = 317,870.58

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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.