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Finding the Fourth Proportional to 243,002.58, 364,501.63 and 76,790.58

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Solution

The fourth proportional to 243,002.58, 364,501.63 and 76,790.58 is: 115,185.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,002.58 : 364,501.63 = 76,790.58 : x
  2. Step 2: Convert to fraction form
    243,002.58/364,501.63 = 76,790.58/x
  3. Step 3: Cross multiply
    243,002.58x = 364,501.63 × 76,790.58
  4. Step 4: Simplify right side
    243,002.58x = 27,990,291,578.65
  5. Step 5: Solve for x
    x = 27,990,291,578.65/243,002.58
  6. Step 6: Final answer
    x = 115,185.16

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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.