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Finding the Fourth Proportional to 612,571.43, 918,900.90 and 163,289.94

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Solution

The fourth proportional to 612,571.43, 918,900.90 and 163,289.94 is: 244,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,571.43 : 918,900.90 = 163,289.94 : x
  2. Step 2: Convert to fraction form
    612,571.43/918,900.90 = 163,289.94/x
  3. Step 3: Cross multiply
    612,571.43x = 918,900.90 × 163,289.94
  4. Step 4: Simplify right side
    612,571.43x = 150,047,272,826.95
  5. Step 5: Solve for x
    x = 150,047,272,826.95/612,571.43
  6. Step 6: Final answer
    x = 244,946.58

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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.