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Finding the Fourth Proportional to 445,506.76, 668,226.56 and 141,888.67

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Solution

The fourth proportional to 445,506.76, 668,226.56 and 141,888.67 is: 212,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,506.76 : 668,226.56 = 141,888.67 : x
  2. Step 2: Convert to fraction form
    445,506.76/668,226.56 = 141,888.67/x
  3. Step 3: Cross multiply
    445,506.76x = 668,226.56 × 141,888.67
  4. Step 4: Simplify right side
    445,506.76x = 94,813,777,857.08
  5. Step 5: Solve for x
    x = 94,813,777,857.08/445,506.76
  6. Step 6: Final answer
    x = 212,822.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.