Finding the Fourth Proportional to 257,566.18, 386,345.14 and 70,577.68
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Solution
The fourth proportional to 257,566.18, 386,345.14 and 70,577.68 is: 105,865.39
Step by Step Solution
- Step 1: Write the proportion equation
257,566.18 : 386,345.14 = 70,577.68 : x - Step 2: Convert to fraction form
257,566.18/386,345.14 = 70,577.68/x - Step 3: Cross multiply
257,566.18x = 386,345.14 × 70,577.68 - Step 4: Simplify right side
257,566.18x = 27,267,343,660.48 - Step 5: Solve for x
x = 27,267,343,660.48/257,566.18 - Step 6: Final answer
x = 105,865.39
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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.