Finding the Fourth Proportional to 468,393.75, 646,384.99 and 253,533.76
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Solution
The fourth proportional to 468,393.75, 646,384.99 and 253,533.76 is: 349,877.46
Step by Step Solution
- Step 1: Write the proportion equation
468,393.75 : 646,384.99 = 253,533.76 : x - Step 2: Convert to fraction form
468,393.75/646,384.99 = 253,533.76/x - Step 3: Cross multiply
468,393.75x = 646,384.99 × 253,533.76 - Step 4: Simplify right side
468,393.75x = 163,880,416,922.26 - Step 5: Solve for x
x = 163,880,416,922.26/468,393.75 - Step 6: Final answer
x = 349,877.46
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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.