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Finding the Fourth Proportional to 282,303.96, 423,445.86 and 71,940.12

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Solution

The fourth proportional to 282,303.96, 423,445.86 and 71,940.12 is: 107,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,303.96 : 423,445.86 = 71,940.12 : x
  2. Step 2: Convert to fraction form
    282,303.96/423,445.86 = 71,940.12/x
  3. Step 3: Cross multiply
    282,303.96x = 423,445.86 × 71,940.12
  4. Step 4: Simplify right side
    282,303.96x = 30,462,745,981.90
  5. Step 5: Solve for x
    x = 30,462,745,981.90/282,303.96
  6. Step 6: Final answer
    x = 107,907.61

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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.