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Finding the Fourth Proportional to 660,846.06, 991,270.04 and 162,210.06

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Solution

The fourth proportional to 660,846.06, 991,270.04 and 162,210.06 is: 243,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,846.06 : 991,270.04 = 162,210.06 : x
  2. Step 2: Convert to fraction form
    660,846.06/991,270.04 = 162,210.06/x
  3. Step 3: Cross multiply
    660,846.06x = 991,270.04 × 162,210.06
  4. Step 4: Simplify right side
    660,846.06x = 160,793,972,664.60
  5. Step 5: Solve for x
    x = 160,793,972,664.60/660,846.06
  6. Step 6: Final answer
    x = 243,315.32

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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.