Home / 208,056.80-312,085.20-158,290.40

Finding the Fourth Proportional to 208,056.80, 312,085.20 and 158,290.40

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Solution

The fourth proportional to 208,056.80, 312,085.20 and 158,290.40 is: 237,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,056.80 : 312,085.20 = 158,290.40 : x
  2. Step 2: Convert to fraction form
    208,056.80/312,085.20 = 158,290.40/x
  3. Step 3: Cross multiply
    208,056.80x = 312,085.20 × 158,290.40
  4. Step 4: Simplify right side
    208,056.80x = 49,400,091,142.08
  5. Step 5: Solve for x
    x = 49,400,091,142.08/208,056.80
  6. Step 6: Final answer
    x = 237,435.60

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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.