Finding the Fourth Proportional to 291,628.74, 402,447.68 and 157,492.74
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Solution
The fourth proportional to 291,628.74, 402,447.68 and 157,492.74 is: 217,339.99
Step by Step Solution
- Step 1: Write the proportion equation
291,628.74 : 402,447.68 = 157,492.74 : x - Step 2: Convert to fraction form
291,628.74/402,447.68 = 157,492.74/x - Step 3: Cross multiply
291,628.74x = 402,447.68 × 157,492.74 - Step 4: Simplify right side
291,628.74x = 63,382,587,829.84 - Step 5: Solve for x
x = 63,382,587,829.84/291,628.74 - Step 6: Final answer
x = 217,339.99
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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.