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Finding the Fourth Proportional to 261,009.60, 390,639.60 and 182,277.60

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Solution

The fourth proportional to 261,009.60, 390,639.60 and 182,277.60 is: 272,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,009.60 : 390,639.60 = 182,277.60 : x
  2. Step 2: Convert to fraction form
    261,009.60/390,639.60 = 182,277.60/x
  3. Step 3: Cross multiply
    261,009.60x = 390,639.60 × 182,277.60
  4. Step 4: Simplify right side
    261,009.60x = 71,204,848,752.96
  5. Step 5: Solve for x
    x = 71,204,848,752.96/261,009.60
  6. Step 6: Final answer
    x = 272,805.48

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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.