Home / 209,724.40-313,895.40-162,722.80

Finding the Fourth Proportional to 209,724.40, 313,895.40 and 162,722.80

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Solution

The fourth proportional to 209,724.40, 313,895.40 and 162,722.80 is: 243,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,724.40 : 313,895.40 = 162,722.80 : x
  2. Step 2: Convert to fraction form
    209,724.40/313,895.40 = 162,722.80/x
  3. Step 3: Cross multiply
    209,724.40x = 313,895.40 × 162,722.80
  4. Step 4: Simplify right side
    209,724.40x = 51,077,938,395.12
  5. Step 5: Solve for x
    x = 51,077,938,395.12/209,724.40
  6. Step 6: Final answer
    x = 243,547.91

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1.5x scale

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.