Home / 283,621.40-425,432.10-143,653.40

Finding the Fourth Proportional to 283,621.40, 425,432.10 and 143,653.40

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Solution

The fourth proportional to 283,621.40, 425,432.10 and 143,653.40 is: 215,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,621.40 : 425,432.10 = 143,653.40 : x
  2. Step 2: Convert to fraction form
    283,621.40/425,432.10 = 143,653.40/x
  3. Step 3: Cross multiply
    283,621.40x = 425,432.10 × 143,653.40
  4. Step 4: Simplify right side
    283,621.40x = 61,114,767,634.14
  5. Step 5: Solve for x
    x = 61,114,767,634.14/283,621.40
  6. Step 6: Final answer
    x = 215,480.10

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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.