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Finding the Fourth Proportional to 445,852.77, 668,638.67 and 146,263.54

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Solution

The fourth proportional to 445,852.77, 668,638.67 and 146,263.54 is: 219,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,852.77 : 668,638.67 = 146,263.54 : x
  2. Step 2: Convert to fraction form
    445,852.77/668,638.67 = 146,263.54/x
  3. Step 3: Cross multiply
    445,852.77x = 668,638.67 × 146,263.54
  4. Step 4: Simplify right side
    445,852.77x = 97,797,455,511.90
  5. Step 5: Solve for x
    x = 97,797,455,511.90/445,852.77
  6. Step 6: Final answer
    x = 219,349.22

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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.