Finding the Fourth Proportional to 389,108.84, 583,681.14 and 119,217.65
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Solution
The fourth proportional to 389,108.84, 583,681.14 and 119,217.65 is: 178,831.95
Step by Step Solution
- Step 1: Write the proportion equation
389,108.84 : 583,681.14 = 119,217.65 : x - Step 2: Convert to fraction form
389,108.84/583,681.14 = 119,217.65/x - Step 3: Cross multiply
389,108.84x = 583,681.14 × 119,217.65 - Step 4: Simplify right side
389,108.84x = 69,585,090,941.72 - Step 5: Solve for x
x = 69,585,090,941.72/389,108.84 - Step 6: Final answer
x = 178,831.95
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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.