Home / 312,186.37-430,817.19-168,946.45

Finding the Fourth Proportional to 312,186.37, 430,817.19 and 168,946.45

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Solution

The fourth proportional to 312,186.37, 430,817.19 and 168,946.45 is: 233,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,186.37 : 430,817.19 = 168,946.45 : x
  2. Step 2: Convert to fraction form
    312,186.37/430,817.19 = 168,946.45/x
  3. Step 3: Cross multiply
    312,186.37x = 430,817.19 × 168,946.45
  4. Step 4: Simplify right side
    312,186.37x = 72,785,034,849.48
  5. Step 5: Solve for x
    x = 72,785,034,849.48/312,186.37
  6. Step 6: Final answer
    x = 233,146.10

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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.