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Finding the Fourth Proportional to 315,297.95, 435,124.23 and 179,355.85

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Solution

The fourth proportional to 315,297.95, 435,124.23 and 179,355.85 is: 247,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,297.95 : 435,124.23 = 179,355.85 : x
  2. Step 2: Convert to fraction form
    315,297.95/435,124.23 = 179,355.85/x
  3. Step 3: Cross multiply
    315,297.95x = 435,124.23 × 179,355.85
  4. Step 4: Simplify right side
    315,297.95x = 78,042,075,039.43
  5. Step 5: Solve for x
    x = 78,042,075,039.43/315,297.95
  6. Step 6: Final answer
    x = 247,518.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.