Finding the Fourth Proportional to 316,534.28, 436,822.80 and 173,292.08
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Solution
The fourth proportional to 316,534.28, 436,822.80 and 173,292.08 is: 239,146.08
Step by Step Solution
- Step 1: Write the proportion equation
316,534.28 : 436,822.80 = 173,292.08 : x - Step 2: Convert to fraction form
316,534.28/436,822.80 = 173,292.08/x - Step 3: Cross multiply
316,534.28x = 436,822.80 × 173,292.08 - Step 4: Simplify right side
316,534.28x = 75,697,931,603.42 - Step 5: Solve for x
x = 75,697,931,603.42/316,534.28 - Step 6: Final answer
x = 239,146.08
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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.