Home / 290,205.10-435,327.15-103,166.38

Finding the Fourth Proportional to 290,205.10, 435,327.15 and 103,166.38

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Solution

The fourth proportional to 290,205.10, 435,327.15 and 103,166.38 is: 154,756.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,205.10 : 435,327.15 = 103,166.38 : x
  2. Step 2: Convert to fraction form
    290,205.10/435,327.15 = 103,166.38/x
  3. Step 3: Cross multiply
    290,205.10x = 435,327.15 × 103,166.38
  4. Step 4: Simplify right side
    290,205.10x = 44,911,126,181.22
  5. Step 5: Solve for x
    x = 44,911,126,181.22/290,205.10
  6. Step 6: Final answer
    x = 154,756.50

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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.