Finding the Fourth Proportional to 260,323.58, 390,386.82 and 141,930.48
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Solution
The fourth proportional to 260,323.58, 390,386.82 and 141,930.48 is: 212,841.99
Step by Step Solution
- Step 1: Write the proportion equation
260,323.58 : 390,386.82 = 141,930.48 : x - Step 2: Convert to fraction form
260,323.58/390,386.82 = 141,930.48/x - Step 3: Cross multiply
260,323.58x = 390,386.82 × 141,930.48 - Step 4: Simplify right side
260,323.58x = 55,407,788,748.27 - Step 5: Solve for x
x = 55,407,788,748.27/260,323.58 - Step 6: Final answer
x = 212,841.99
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1.5x scale
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.