Finding the Fourth Proportional to 219,268.04, 302,557.52 and 128,589.74
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Solution
The fourth proportional to 219,268.04, 302,557.52 and 128,589.74 is: 177,434.85
Step by Step Solution
- Step 1: Write the proportion equation
219,268.04 : 302,557.52 = 128,589.74 : x - Step 2: Convert to fraction form
219,268.04/302,557.52 = 128,589.74/x - Step 3: Cross multiply
219,268.04x = 302,557.52 × 128,589.74 - Step 4: Simplify right side
219,268.04x = 38,905,792,831.84 - Step 5: Solve for x
x = 38,905,792,831.84/219,268.04 - Step 6: Final answer
x = 177,434.85
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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.