Finding the Fourth Proportional to 320,730.72, 442,615.60 and 207,750.08
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Solution
The fourth proportional to 320,730.72, 442,615.60 and 207,750.08 is: 286,699.78
Step by Step Solution
- Step 1: Write the proportion equation
320,730.72 : 442,615.60 = 207,750.08 : x - Step 2: Convert to fraction form
320,730.72/442,615.60 = 207,750.08/x - Step 3: Cross multiply
320,730.72x = 442,615.60 × 207,750.08 - Step 4: Simplify right side
320,730.72x = 91,953,426,309.25 - Step 5: Solve for x
x = 91,953,426,309.25/320,730.72 - Step 6: Final answer
x = 286,699.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.