Home / 445,368.04-668,281.74-208,734.76

Finding the Fourth Proportional to 445,368.04, 668,281.74 and 208,734.76

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Solution

The fourth proportional to 445,368.04, 668,281.74 and 208,734.76 is: 313,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,368.04 : 668,281.74 = 208,734.76 : x
  2. Step 2: Convert to fraction form
    445,368.04/668,281.74 = 208,734.76/x
  3. Step 3: Cross multiply
    445,368.04x = 668,281.74 × 208,734.76
  4. Step 4: Simplify right side
    445,368.04x = 139,493,628,611.28
  5. Step 5: Solve for x
    x = 139,493,628,611.28/445,368.04
  6. Step 6: Final answer
    x = 313,209.79

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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.