Home / 283,938.20-425,907.30-213,079.40

Finding the Fourth Proportional to 283,938.20, 425,907.30 and 213,079.40

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Solution

The fourth proportional to 283,938.20, 425,907.30 and 213,079.40 is: 319,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,938.20 : 425,907.30 = 213,079.40 : x
  2. Step 2: Convert to fraction form
    283,938.20/425,907.30 = 213,079.40/x
  3. Step 3: Cross multiply
    283,938.20x = 425,907.30 × 213,079.40
  4. Step 4: Simplify right side
    283,938.20x = 90,752,071,939.62
  5. Step 5: Solve for x
    x = 90,752,071,939.62/283,938.20
  6. Step 6: Final answer
    x = 319,619.10

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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.