Finding the Fourth Proportional to 257,316.12, 385,878.78 and 88,792.92
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Solution
The fourth proportional to 257,316.12, 385,878.78 and 88,792.92 is: 133,156.46
Step by Step Solution
- Step 1: Write the proportion equation
257,316.12 : 385,878.78 = 88,792.92 : x - Step 2: Convert to fraction form
257,316.12/385,878.78 = 88,792.92/x - Step 3: Cross multiply
257,316.12x = 385,878.78 × 88,792.92 - Step 4: Simplify right side
257,316.12x = 34,263,303,642.24 - Step 5: Solve for x
x = 34,263,303,642.24/257,316.12 - Step 6: Final answer
x = 133,156.46
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1.5x scale
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.