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Finding the Fourth Proportional to 151,723.40, 212,019.10 and 151,723.40

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Solution

The fourth proportional to 151,723.40, 212,019.10 and 151,723.40 is: 212,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,723.40 : 212,019.10 = 151,723.40 : x
  2. Step 2: Convert to fraction form
    151,723.40/212,019.10 = 151,723.40/x
  3. Step 3: Cross multiply
    151,723.40x = 212,019.10 × 151,723.40
  4. Step 4: Simplify right side
    151,723.40x = 32,168,258,716.94
  5. Step 5: Solve for x
    x = 32,168,258,716.94/151,723.40
  6. Step 6: Final answer
    x = 212,019.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.