Finding the Fourth Proportional to 383,416.99, 529,108.35 and 208,988.68
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Solution
The fourth proportional to 383,416.99, 529,108.35 and 208,988.68 is: 288,400.51
Step by Step Solution
- Step 1: Write the proportion equation
383,416.99 : 529,108.35 = 208,988.68 : x - Step 2: Convert to fraction form
383,416.99/529,108.35 = 208,988.68/x - Step 3: Cross multiply
383,416.99x = 529,108.35 × 208,988.68 - Step 4: Simplify right side
383,416.99x = 110,577,655,643.48 - Step 5: Solve for x
x = 110,577,655,643.48/383,416.99 - Step 6: Final answer
x = 288,400.51
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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.