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Finding the Fourth Proportional to 259,143.60, 357,495.96 and 151,647.68

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Solution

The fourth proportional to 259,143.60, 357,495.96 and 151,647.68 is: 209,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,143.60 : 357,495.96 = 151,647.68 : x
  2. Step 2: Convert to fraction form
    259,143.60/357,495.96 = 151,647.68/x
  3. Step 3: Cross multiply
    259,143.60x = 357,495.96 × 151,647.68
  4. Step 4: Simplify right side
    259,143.60x = 54,213,432,943.37
  5. Step 5: Solve for x
    x = 54,213,432,943.37/259,143.60
  6. Step 6: Final answer
    x = 209,202.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.