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Finding the Fourth Proportional to 272,665.40, 376,344.56 and 157,925.56

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Solution

The fourth proportional to 272,665.40, 376,344.56 and 157,925.56 is: 217,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,665.40 : 376,344.56 = 157,925.56 : x
  2. Step 2: Convert to fraction form
    272,665.40/376,344.56 = 157,925.56/x
  3. Step 3: Cross multiply
    272,665.40x = 376,344.56 × 157,925.56
  4. Step 4: Simplify right side
    272,665.40x = 59,434,424,844.91
  5. Step 5: Solve for x
    x = 59,434,424,844.91/272,665.40
  6. Step 6: Final answer
    x = 217,975.67

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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.