Finding the Fourth Proportional to 187,536.16, 258,490.20 and 139,772.08
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Solution
The fourth proportional to 187,536.16, 258,490.20 and 139,772.08 is: 192,654.65
Step by Step Solution
- Step 1: Write the proportion equation
187,536.16 : 258,490.20 = 139,772.08 : x - Step 2: Convert to fraction form
187,536.16/258,490.20 = 139,772.08/x - Step 3: Cross multiply
187,536.16x = 258,490.20 × 139,772.08 - Step 4: Simplify right side
187,536.16x = 36,129,712,913.62 - Step 5: Solve for x
x = 36,129,712,913.62/187,536.16 - Step 6: Final answer
x = 192,654.65
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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.