Finding the Fourth Proportional to 320,332.16, 480,669.36 and 207,985.76
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Solution
The fourth proportional to 320,332.16, 480,669.36 and 207,985.76 is: 312,089.75
Step by Step Solution
- Step 1: Write the proportion equation
320,332.16 : 480,669.36 = 207,985.76 : x - Step 2: Convert to fraction form
320,332.16/480,669.36 = 207,985.76/x - Step 3: Cross multiply
320,332.16x = 480,669.36 × 207,985.76 - Step 4: Simplify right side
320,332.16x = 99,972,382,148.31 - Step 5: Solve for x
x = 99,972,382,148.31/320,332.16 - Step 6: Final answer
x = 312,089.75
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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.