Home / 316,109.90-436,099.35-207,240.38

Finding the Fourth Proportional to 316,109.90, 436,099.35 and 207,240.38

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Solution

The fourth proportional to 316,109.90, 436,099.35 and 207,240.38 is: 285,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,109.90 : 436,099.35 = 207,240.38 : x
  2. Step 2: Convert to fraction form
    316,109.90/436,099.35 = 207,240.38/x
  3. Step 3: Cross multiply
    316,109.90x = 436,099.35 × 207,240.38
  4. Step 4: Simplify right side
    316,109.90x = 90,377,395,011.75
  5. Step 5: Solve for x
    x = 90,377,395,011.75/316,109.90
  6. Step 6: Final answer
    x = 285,904.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.