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Finding the Fourth Proportional to 312,207, 430,844.85 and 168,967.01

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Solution

The fourth proportional to 312,207, 430,844.85 and 168,967.01 is: 233,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,207 : 430,844.85 = 168,967.01 : x
  2. Step 2: Convert to fraction form
    312,207/430,844.85 = 168,967.01/x
  3. Step 3: Cross multiply
    312,207x = 430,844.85 × 168,967.01
  4. Step 4: Simplify right side
    312,207x = 72,798,563,924.17
  5. Step 5: Solve for x
    x = 72,798,563,924.17/312,207
  6. Step 6: Final answer
    x = 233,174.03

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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.