Finding the Fourth Proportional to 306,497.80, 459,746.70 and 84,881.80
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Solution
The fourth proportional to 306,497.80, 459,746.70 and 84,881.80 is: 127,322.70
Step by Step Solution
- Step 1: Write the proportion equation
306,497.80 : 459,746.70 = 84,881.80 : x - Step 2: Convert to fraction form
306,497.80/459,746.70 = 84,881.80/x - Step 3: Cross multiply
306,497.80x = 459,746.70 × 84,881.80 - Step 4: Simplify right side
306,497.80x = 39,024,127,440.06 - Step 5: Solve for x
x = 39,024,127,440.06/306,497.80 - Step 6: Final answer
x = 127,322.70
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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.