Finding the Fourth Proportional to 219,110.60, 302,374.14 and 138,572.84
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Solution
The fourth proportional to 219,110.60, 302,374.14 and 138,572.84 is: 191,231.48
Step by Step Solution
- Step 1: Write the proportion equation
219,110.60 : 302,374.14 = 138,572.84 : x - Step 2: Convert to fraction form
219,110.60/302,374.14 = 138,572.84/x - Step 3: Cross multiply
219,110.60x = 302,374.14 × 138,572.84 - Step 4: Simplify right side
219,110.60x = 41,900,843,322.36 - Step 5: Solve for x
x = 41,900,843,322.36/219,110.60 - Step 6: Final answer
x = 191,231.48
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1.5x scale
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.