Home / 342,196.20-513,284.70-155,207.40

Finding the Fourth Proportional to 342,196.20, 513,284.70 and 155,207.40

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Solution

The fourth proportional to 342,196.20, 513,284.70 and 155,207.40 is: 232,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,196.20 : 513,284.70 = 155,207.40 : x
  2. Step 2: Convert to fraction form
    342,196.20/513,284.70 = 155,207.40/x
  3. Step 3: Cross multiply
    342,196.20x = 513,284.70 × 155,207.40
  4. Step 4: Simplify right side
    342,196.20x = 79,665,583,746.78
  5. Step 5: Solve for x
    x = 79,665,583,746.78/342,196.20
  6. Step 6: Final answer
    x = 232,806.75

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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.