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Finding the Fourth Proportional to 161,570.40, 242,355.60 and 147,573.60

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Solution

The fourth proportional to 161,570.40, 242,355.60 and 147,573.60 is: 221,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,570.40 : 242,355.60 = 147,573.60 : x
  2. Step 2: Convert to fraction form
    161,570.40/242,355.60 = 147,573.60/x
  3. Step 3: Cross multiply
    161,570.40x = 242,355.60 × 147,573.60
  4. Step 4: Simplify right side
    161,570.40x = 35,765,288,372.16
  5. Step 5: Solve for x
    x = 35,765,288,372.16/161,570.40
  6. Step 6: Final answer
    x = 221,360.40

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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.