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Finding the Fourth Proportional to 272,662.34, 376,176.62 and 157,878.32

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Solution

The fourth proportional to 272,662.34, 376,176.62 and 157,878.32 is: 217,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,662.34 : 376,176.62 = 157,878.32 : x
  2. Step 2: Convert to fraction form
    272,662.34/376,176.62 = 157,878.32/x
  3. Step 3: Cross multiply
    272,662.34x = 376,176.62 × 157,878.32
  4. Step 4: Simplify right side
    272,662.34x = 59,390,130,118.60
  5. Step 5: Solve for x
    x = 59,390,130,118.60/272,662.34
  6. Step 6: Final answer
    x = 217,815.67

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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.