Finding the Fourth Proportional to 387,521.40, 581,293.14 and 107,038.68
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Solution
The fourth proportional to 387,521.40, 581,293.14 and 107,038.68 is: 160,561.07
Step by Step Solution
- Step 1: Write the proportion equation
387,521.40 : 581,293.14 = 107,038.68 : x - Step 2: Convert to fraction form
387,521.40/581,293.14 = 107,038.68/x - Step 3: Cross multiply
387,521.40x = 581,293.14 × 107,038.68 - Step 4: Simplify right side
387,521.40x = 62,220,850,398.66 - Step 5: Solve for x
x = 62,220,850,398.66/387,521.40 - Step 6: Final answer
x = 160,561.07
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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.