Finding the Fourth Proportional to 343,985.76, 515,981.52 and 94,681.44
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Solution
The fourth proportional to 343,985.76, 515,981.52 and 94,681.44 is: 142,022.95
Step by Step Solution
- Step 1: Write the proportion equation
343,985.76 : 515,981.52 = 94,681.44 : x - Step 2: Convert to fraction form
343,985.76/515,981.52 = 94,681.44/x - Step 3: Cross multiply
343,985.76x = 515,981.52 × 94,681.44 - Step 4: Simplify right side
343,985.76x = 48,853,873,326.99 - Step 5: Solve for x
x = 48,853,873,326.99/343,985.76 - Step 6: Final answer
x = 142,022.95
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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.