Finding the Fourth Proportional to 310,897.68, 466,347.28 and 86,270.18
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Solution
The fourth proportional to 310,897.68, 466,347.28 and 86,270.18 is: 129,405.48
Step by Step Solution
- Step 1: Write the proportion equation
310,897.68 : 466,347.28 = 86,270.18 : x - Step 2: Convert to fraction form
310,897.68/466,347.28 = 86,270.18/x - Step 3: Cross multiply
310,897.68x = 466,347.28 × 86,270.18 - Step 4: Simplify right side
310,897.68x = 40,231,863,788.11 - Step 5: Solve for x
x = 40,231,863,788.11/310,897.68 - Step 6: Final answer
x = 129,405.48
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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.