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Finding the Fourth Proportional to 660,868.12, 991,303.17 and 162,232.12

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Solution

The fourth proportional to 660,868.12, 991,303.17 and 162,232.12 is: 243,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,868.12 : 991,303.17 = 162,232.12 : x
  2. Step 2: Convert to fraction form
    660,868.12/991,303.17 = 162,232.12/x
  3. Step 3: Cross multiply
    660,868.12x = 991,303.17 × 162,232.12
  4. Step 4: Simplify right side
    660,868.12x = 160,821,214,831.82
  5. Step 5: Solve for x
    x = 160,821,214,831.82/660,868.12
  6. Step 6: Final answer
    x = 243,348.42

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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.