Finding the Fourth Proportional to 423,379.84, 584,275.26 and 242,121.28
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Solution
The fourth proportional to 423,379.84, 584,275.26 and 242,121.28 is: 334,133.70
Step by Step Solution
- Step 1: Write the proportion equation
423,379.84 : 584,275.26 = 242,121.28 : x - Step 2: Convert to fraction form
423,379.84/584,275.26 = 242,121.28/x - Step 3: Cross multiply
423,379.84x = 584,275.26 × 242,121.28 - Step 4: Simplify right side
423,379.84x = 141,465,473,823.53 - Step 5: Solve for x
x = 141,465,473,823.53/423,379.84 - Step 6: Final answer
x = 334,133.70
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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.