Home / 399,180.35-598,779.03-143,029.65

Finding the Fourth Proportional to 399,180.35, 598,779.03 and 143,029.65

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Solution

The fourth proportional to 399,180.35, 598,779.03 and 143,029.65 is: 214,547.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,180.35 : 598,779.03 = 143,029.65 : x
  2. Step 2: Convert to fraction form
    399,180.35/598,779.03 = 143,029.65/x
  3. Step 3: Cross multiply
    399,180.35x = 598,779.03 × 143,029.65
  4. Step 4: Simplify right side
    399,180.35x = 85,643,153,697.35
  5. Step 5: Solve for x
    x = 85,643,153,697.35/399,180.35
  6. Step 6: Final answer
    x = 214,547.52

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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.