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Finding the Fourth Proportional to 612,080.10, 918,118.80 and 162,801.05

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Solution

The fourth proportional to 612,080.10, 918,118.80 and 162,801.05 is: 244,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,080.10 : 918,118.80 = 162,801.05 : x
  2. Step 2: Convert to fraction form
    612,080.10/918,118.80 = 162,801.05/x
  3. Step 3: Cross multiply
    612,080.10x = 918,118.80 × 162,801.05
  4. Step 4: Simplify right side
    612,080.10x = 149,470,700,074.15
  5. Step 5: Solve for x
    x = 149,470,700,074.15/612,080.10
  6. Step 6: Final answer
    x = 244,201.21

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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.