Finding the Fourth Proportional to 558,837.76, 838,248.48 and 138,113.68
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Solution
The fourth proportional to 558,837.76, 838,248.48 and 138,113.68 is: 207,168.50
Step by Step Solution
- Step 1: Write the proportion equation
558,837.76 : 838,248.48 = 138,113.68 : x - Step 2: Convert to fraction form
558,837.76/838,248.48 = 138,113.68/x - Step 3: Cross multiply
558,837.76x = 838,248.48 × 138,113.68 - Step 4: Simplify right side
558,837.76x = 115,773,582,327.21 - Step 5: Solve for x
x = 115,773,582,327.21/558,837.76 - Step 6: Final answer
x = 207,168.50
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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.