Finding the Fourth Proportional to 291,943.14, 402,881.36 and 157,807.14
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Solution
The fourth proportional to 291,943.14, 402,881.36 and 157,807.14 is: 217,773.76
Step by Step Solution
- Step 1: Write the proportion equation
291,943.14 : 402,881.36 = 157,807.14 : x - Step 2: Convert to fraction form
291,943.14/402,881.36 = 157,807.14/x - Step 3: Cross multiply
291,943.14x = 402,881.36 × 157,807.14 - Step 4: Simplify right side
291,943.14x = 63,577,554,391.87 - Step 5: Solve for x
x = 63,577,554,391.87/291,943.14 - Step 6: Final answer
x = 217,773.76
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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.