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Finding the Fourth Proportional to 236,428.60, 354,642.90 and 112,012.60

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Solution

The fourth proportional to 236,428.60, 354,642.90 and 112,012.60 is: 168,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,428.60 : 354,642.90 = 112,012.60 : x
  2. Step 2: Convert to fraction form
    236,428.60/354,642.90 = 112,012.60/x
  3. Step 3: Cross multiply
    236,428.60x = 354,642.90 × 112,012.60
  4. Step 4: Simplify right side
    236,428.60x = 39,724,473,300.54
  5. Step 5: Solve for x
    x = 39,724,473,300.54/236,428.60
  6. Step 6: Final answer
    x = 168,018.90

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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.