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Finding the Fourth Proportional to 161,290.80, 241,475.40 and 142,858.80

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Solution

The fourth proportional to 161,290.80, 241,475.40 and 142,858.80 is: 213,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,290.80 : 241,475.40 = 142,858.80 : x
  2. Step 2: Convert to fraction form
    161,290.80/241,475.40 = 142,858.80/x
  3. Step 3: Cross multiply
    161,290.80x = 241,475.40 × 142,858.80
  4. Step 4: Simplify right side
    161,290.80x = 34,496,885,873.52
  5. Step 5: Solve for x
    x = 34,496,885,873.52/161,290.80
  6. Step 6: Final answer
    x = 213,880.06

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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.