Finding the Fourth Proportional to 368,736.95, 553,294.97 and 319,135.79
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Solution
The fourth proportional to 368,736.95, 553,294.97 and 319,135.79 is: 478,867.73
Step by Step Solution
- Step 1: Write the proportion equation
368,736.95 : 553,294.97 = 319,135.79 : x - Step 2: Convert to fraction form
368,736.95/553,294.97 = 319,135.79/x - Step 3: Cross multiply
368,736.95x = 553,294.97 × 319,135.79 - Step 4: Simplify right side
368,736.95x = 176,576,227,353.98 - Step 5: Solve for x
x = 176,576,227,353.98/368,736.95 - Step 6: Final answer
x = 478,867.73
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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.