Finding the Fourth Proportional to 319,339.17, 478,230.62 and 211,202.65
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Solution
The fourth proportional to 319,339.17, 478,230.62 and 211,202.65 is: 316,289.34
Step by Step Solution
- Step 1: Write the proportion equation
319,339.17 : 478,230.62 = 211,202.65 : x - Step 2: Convert to fraction form
319,339.17/478,230.62 = 211,202.65/x - Step 3: Cross multiply
319,339.17x = 478,230.62 × 211,202.65 - Step 4: Simplify right side
319,339.17x = 101,003,574,588.93 - Step 5: Solve for x
x = 101,003,574,588.93/319,339.17 - Step 6: Final answer
x = 316,289.34
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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.