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Finding the Fourth Proportional to 240,626.29, 360,814.84 and 128,276.33

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Solution

The fourth proportional to 240,626.29, 360,814.84 and 128,276.33 is: 192,348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,626.29 : 360,814.84 = 128,276.33 : x
  2. Step 2: Convert to fraction form
    240,626.29/360,814.84 = 128,276.33/x
  3. Step 3: Cross multiply
    240,626.29x = 360,814.84 × 128,276.33
  4. Step 4: Simplify right side
    240,626.29x = 46,284,004,111.11
  5. Step 5: Solve for x
    x = 46,284,004,111.11/240,626.29
  6. Step 6: Final answer
    x = 192,348.08

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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.