Finding the Fourth Proportional to 420,216.24, 579,946.68 and 233,966.64
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Solution
The fourth proportional to 420,216.24, 579,946.68 and 233,966.64 is: 322,900.84
Step by Step Solution
- Step 1: Write the proportion equation
420,216.24 : 579,946.68 = 233,966.64 : x - Step 2: Convert to fraction form
420,216.24/579,946.68 = 233,966.64/x - Step 3: Cross multiply
420,216.24x = 579,946.68 × 233,966.64 - Step 4: Simplify right side
420,216.24x = 135,688,176,098.76 - Step 5: Solve for x
x = 135,688,176,098.76/420,216.24 - Step 6: Final answer
x = 322,900.84
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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.