Home / 205,263.60-307,895.40-121,282.80

Finding the Fourth Proportional to 205,263.60, 307,895.40 and 121,282.80

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Solution

The fourth proportional to 205,263.60, 307,895.40 and 121,282.80 is: 181,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,263.60 : 307,895.40 = 121,282.80 : x
  2. Step 2: Convert to fraction form
    205,263.60/307,895.40 = 121,282.80/x
  3. Step 3: Cross multiply
    205,263.60x = 307,895.40 × 121,282.80
  4. Step 4: Simplify right side
    205,263.60x = 37,342,416,219.12
  5. Step 5: Solve for x
    x = 37,342,416,219.12/205,263.60
  6. Step 6: Final answer
    x = 181,924.20

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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.