Home / 312,153.36-430,770.96-168,913.35

Finding the Fourth Proportional to 312,153.36, 430,770.96 and 168,913.35

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Solution

The fourth proportional to 312,153.36, 430,770.96 and 168,913.35 is: 233,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,153.36 : 430,770.96 = 168,913.35 : x
  2. Step 2: Convert to fraction form
    312,153.36/430,770.96 = 168,913.35/x
  3. Step 3: Cross multiply
    312,153.36x = 430,770.96 × 168,913.35
  4. Step 4: Simplify right side
    312,153.36x = 72,762,965,936.32
  5. Step 5: Solve for x
    x = 72,762,965,936.32/312,153.36
  6. Step 6: Final answer
    x = 233,100.06

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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.