Finding the Fourth Proportional to 458,742.09, 633,064.11 and 257,538.09
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Solution
The fourth proportional to 458,742.09, 633,064.11 and 257,538.09 is: 355,402.58
Step by Step Solution
- Step 1: Write the proportion equation
458,742.09 : 633,064.11 = 257,538.09 : x - Step 2: Convert to fraction form
458,742.09/633,064.11 = 257,538.09/x - Step 3: Cross multiply
458,742.09x = 633,064.11 × 257,538.09 - Step 4: Simplify right side
458,742.09x = 163,038,123,145.17 - Step 5: Solve for x
x = 163,038,123,145.17/458,742.09 - Step 6: Final answer
x = 355,402.58
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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.