Finding the Fourth Proportional to 153,306.84, 211,562.94 and 85,323.48
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Solution
The fourth proportional to 153,306.84, 211,562.94 and 85,323.48 is: 117,746.12
Step by Step Solution
- Step 1: Write the proportion equation
153,306.84 : 211,562.94 = 85,323.48 : x - Step 2: Convert to fraction form
153,306.84/211,562.94 = 85,323.48/x - Step 3: Cross multiply
153,306.84x = 211,562.94 × 85,323.48 - Step 4: Simplify right side
153,306.84x = 18,051,286,279.83 - Step 5: Solve for x
x = 18,051,286,279.83/153,306.84 - Step 6: Final answer
x = 117,746.12
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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.