Finding the Fourth Proportional to 423,985.51, 636,071.82 and 234,721.99
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Solution
The fourth proportional to 423,985.51, 636,071.82 and 234,721.99 is: 352,134.78
Step by Step Solution
- Step 1: Write the proportion equation
423,985.51 : 636,071.82 = 234,721.99 : x - Step 2: Convert to fraction form
423,985.51/636,071.82 = 234,721.99/x - Step 3: Cross multiply
423,985.51x = 636,071.82 × 234,721.99 - Step 4: Simplify right side
423,985.51x = 149,300,043,373.32 - Step 5: Solve for x
x = 149,300,043,373.32/423,985.51 - Step 6: Final answer
x = 352,134.78
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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.