Finding the Fourth Proportional to 423,723.60, 584,742.78 and 230,135.09
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Solution
The fourth proportional to 423,723.60, 584,742.78 and 230,135.09 is: 317,588.71
Step by Step Solution
- Step 1: Write the proportion equation
423,723.60 : 584,742.78 = 230,135.09 : x - Step 2: Convert to fraction form
423,723.60/584,742.78 = 230,135.09/x - Step 3: Cross multiply
423,723.60x = 584,742.78 × 230,135.09 - Step 4: Simplify right side
423,723.60x = 134,569,831,337.84 - Step 5: Solve for x
x = 134,569,831,337.84/423,723.60 - Step 6: Final answer
x = 317,588.71
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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.