Finding the Fourth Proportional to 230,322.17, 317,854.37 and 128,347.76
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Solution
The fourth proportional to 230,322.17, 317,854.37 and 128,347.76 is: 177,125.35
Step by Step Solution
- Step 1: Write the proportion equation
230,322.17 : 317,854.37 = 128,347.76 : x - Step 2: Convert to fraction form
230,322.17/317,854.37 = 128,347.76/x - Step 3: Cross multiply
230,322.17x = 317,854.37 × 128,347.76 - Step 4: Simplify right side
230,322.17x = 40,795,895,127.31 - Step 5: Solve for x
x = 40,795,895,127.31/230,322.17 - Step 6: Final answer
x = 177,125.35
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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.