Home / 342,275.96-513,482.40-105,609.75

Finding the Fourth Proportional to 342,275.96, 513,482.40 and 105,609.75

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Solution

The fourth proportional to 342,275.96, 513,482.40 and 105,609.75 is: 158,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,275.96 : 513,482.40 = 105,609.75 : x
  2. Step 2: Convert to fraction form
    342,275.96/513,482.40 = 105,609.75/x
  3. Step 3: Cross multiply
    342,275.96x = 513,482.40 × 105,609.75
  4. Step 4: Simplify right side
    342,275.96x = 54,228,747,893.40
  5. Step 5: Solve for x
    x = 54,228,747,893.40/342,275.96
  6. Step 6: Final answer
    x = 158,435.75

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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.