Finding the Fourth Proportional to 291,602.75, 402,411.80 and 157,466.75
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Solution
The fourth proportional to 291,602.75, 402,411.80 and 157,466.75 is: 217,304.12
Step by Step Solution
- Step 1: Write the proportion equation
291,602.75 : 402,411.80 = 157,466.75 : x - Step 2: Convert to fraction form
291,602.75/402,411.80 = 157,466.75/x - Step 3: Cross multiply
291,602.75x = 402,411.80 × 157,466.75 - Step 4: Simplify right side
291,602.75x = 63,366,478,307.65 - Step 5: Solve for x
x = 63,366,478,307.65/291,602.75 - Step 6: Final answer
x = 217,304.12
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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.