Finding the Fourth Proportional to 387,683.60, 534,924.84 and 226,507.52
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Solution
The fourth proportional to 387,683.60, 534,924.84 and 226,507.52 is: 312,534.50
Step by Step Solution
- Step 1: Write the proportion equation
387,683.60 : 534,924.84 = 226,507.52 : x - Step 2: Convert to fraction form
387,683.60/534,924.84 = 226,507.52/x - Step 3: Cross multiply
387,683.60x = 534,924.84 × 226,507.52 - Step 4: Simplify right side
387,683.60x = 121,164,498,894.80 - Step 5: Solve for x
x = 121,164,498,894.80/387,683.60 - Step 6: Final answer
x = 312,534.50
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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.