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Finding the Fourth Proportional to 309,275.85, 463,896.91 and 84,620.07

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Solution

The fourth proportional to 309,275.85, 463,896.91 and 84,620.07 is: 126,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,275.85 : 463,896.91 = 84,620.07 : x
  2. Step 2: Convert to fraction form
    309,275.85/463,896.91 = 84,620.07/x
  3. Step 3: Cross multiply
    309,275.85x = 463,896.91 × 84,620.07
  4. Step 4: Simplify right side
    309,275.85x = 39,254,990,842.37
  5. Step 5: Solve for x
    x = 39,254,990,842.37/309,275.85
  6. Step 6: Final answer
    x = 126,925.50

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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.