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Finding the Fourth Proportional to 262,930.96, 362,919 and 155,538.28

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Solution

The fourth proportional to 262,930.96, 362,919 and 155,538.28 is: 214,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,930.96 : 362,919 = 155,538.28 : x
  2. Step 2: Convert to fraction form
    262,930.96/362,919 = 155,538.28/x
  3. Step 3: Cross multiply
    262,930.96x = 362,919 × 155,538.28
  4. Step 4: Simplify right side
    262,930.96x = 56,447,797,039.32
  5. Step 5: Solve for x
    x = 56,447,797,039.32/262,930.96
  6. Step 6: Final answer
    x = 214,686.76

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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.