Finding the Fourth Proportional to 472,306.64, 651,779.28 and 257,442.80
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Solution
The fourth proportional to 472,306.64, 651,779.28 and 257,442.80 is: 355,268.95
Step by Step Solution
- Step 1: Write the proportion equation
472,306.64 : 651,779.28 = 257,442.80 : x - Step 2: Convert to fraction form
472,306.64/651,779.28 = 257,442.80/x - Step 3: Cross multiply
472,306.64x = 651,779.28 × 257,442.80 - Step 4: Simplify right side
472,306.64x = 167,795,882,825.18 - Step 5: Solve for x
x = 167,795,882,825.18/472,306.64 - Step 6: Final answer
x = 355,268.95
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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.