Home / 342,865.90-513,314.70-210,005.65

Finding the Fourth Proportional to 342,865.90, 513,314.70 and 210,005.65

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Solution

The fourth proportional to 342,865.90, 513,314.70 and 210,005.65 is: 314,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,865.90 : 513,314.70 = 210,005.65 : x
  2. Step 2: Convert to fraction form
    342,865.90/513,314.70 = 210,005.65/x
  3. Step 3: Cross multiply
    342,865.90x = 513,314.70 × 210,005.65
  4. Step 4: Simplify right side
    342,865.90x = 107,798,987,228.06
  5. Step 5: Solve for x
    x = 107,798,987,228.06/342,865.90
  6. Step 6: Final answer
    x = 314,405.68

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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.