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Finding the Fourth Proportional to 342,001.05, 479,982.45 and 342,001.05

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Solution

The fourth proportional to 342,001.05, 479,982.45 and 342,001.05 is: 479,982.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,001.05 : 479,982.45 = 342,001.05 : x
  2. Step 2: Convert to fraction form
    342,001.05/479,982.45 = 342,001.05/x
  3. Step 3: Cross multiply
    342,001.05x = 479,982.45 × 342,001.05
  4. Step 4: Simplify right side
    342,001.05x = 164,154,501,881.57
  5. Step 5: Solve for x
    x = 164,154,501,881.57/342,001.05
  6. Step 6: Final answer
    x = 479,982.45

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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.