Finding the Fourth Proportional to 329,789.16, 455,044.35 and 207,210.53
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Solution
The fourth proportional to 329,789.16, 455,044.35 and 207,210.53 is: 285,909.88
Step by Step Solution
- Step 1: Write the proportion equation
329,789.16 : 455,044.35 = 207,210.53 : x - Step 2: Convert to fraction form
329,789.16/455,044.35 = 207,210.53/x - Step 3: Cross multiply
329,789.16x = 455,044.35 × 207,210.53 - Step 4: Simplify right side
329,789.16x = 94,289,980,406.28 - Step 5: Solve for x
x = 94,289,980,406.28/329,789.16 - Step 6: Final answer
x = 285,909.88
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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.