Finding the Fourth Proportional to 420,235.93, 579,924.80 and 229,249.31
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Solution
The fourth proportional to 420,235.93, 579,924.80 and 229,249.31 is: 316,363.61
Step by Step Solution
- Step 1: Write the proportion equation
420,235.93 : 579,924.80 = 229,249.31 : x - Step 2: Convert to fraction form
420,235.93/579,924.80 = 229,249.31/x - Step 3: Cross multiply
420,235.93x = 579,924.80 × 229,249.31 - Step 4: Simplify right side
420,235.93x = 132,947,357,065.70 - Step 5: Solve for x
x = 132,947,357,065.70/420,235.93 - Step 6: Final answer
x = 316,363.61
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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.