Finding the Fourth Proportional to 288,533.70, 432,809.39 and 98,991.42
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Solution
The fourth proportional to 288,533.70, 432,809.39 and 98,991.42 is: 148,490.17
Step by Step Solution
- Step 1: Write the proportion equation
288,533.70 : 432,809.39 = 98,991.42 : x - Step 2: Convert to fraction form
288,533.70/432,809.39 = 98,991.42/x - Step 3: Cross multiply
288,533.70x = 432,809.39 × 98,991.42 - Step 4: Simplify right side
288,533.70x = 42,844,417,051.13 - Step 5: Solve for x
x = 42,844,417,051.13/288,533.70 - Step 6: Final answer
x = 148,490.17
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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.