Finding the Fourth Proportional to 257,985.54, 386,878.68 and 100,192.68
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Solution
The fourth proportional to 257,985.54, 386,878.68 and 100,192.68 is: 150,250.33
Step by Step Solution
- Step 1: Write the proportion equation
257,985.54 : 386,878.68 = 100,192.68 : x - Step 2: Convert to fraction form
257,985.54/386,878.68 = 100,192.68/x - Step 3: Cross multiply
257,985.54x = 386,878.68 × 100,192.68 - Step 4: Simplify right side
257,985.54x = 38,762,411,784.06 - Step 5: Solve for x
x = 38,762,411,784.06/257,985.54 - Step 6: Final answer
x = 150,250.33
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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.