Finding the Fourth Proportional to 291,921.84, 402,852.60 and 157,785.84
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Solution
The fourth proportional to 291,921.84, 402,852.60 and 157,785.84 is: 217,744.71
Step by Step Solution
- Step 1: Write the proportion equation
291,921.84 : 402,852.60 = 157,785.84 : x - Step 2: Convert to fraction form
291,921.84/402,852.60 = 157,785.84/x - Step 3: Cross multiply
291,921.84x = 402,852.60 × 157,785.84 - Step 4: Simplify right side
291,921.84x = 63,564,435,887.18 - Step 5: Solve for x
x = 63,564,435,887.18/291,921.84 - Step 6: Final answer
x = 217,744.71
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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.