Finding the Fourth Proportional to 371,854.16, 513,161.96 and 202,088.32
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Solution
The fourth proportional to 371,854.16, 513,161.96 and 202,088.32 is: 278,883.63
Step by Step Solution
- Step 1: Write the proportion equation
371,854.16 : 513,161.96 = 202,088.32 : x - Step 2: Convert to fraction form
371,854.16/513,161.96 = 202,088.32/x - Step 3: Cross multiply
371,854.16x = 513,161.96 × 202,088.32 - Step 4: Simplify right side
371,854.16x = 103,704,038,384.31 - Step 5: Solve for x
x = 103,704,038,384.31/371,854.16 - Step 6: Final answer
x = 278,883.63
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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.