Finding the Fourth Proportional to 387,532.64, 580,985.28 and 121,156.04
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Solution
The fourth proportional to 387,532.64, 580,985.28 and 121,156.04 is: 181,635.99
Step by Step Solution
- Step 1: Write the proportion equation
387,532.64 : 580,985.28 = 121,156.04 : x - Step 2: Convert to fraction form
387,532.64/580,985.28 = 121,156.04/x - Step 3: Cross multiply
387,532.64x = 580,985.28 × 121,156.04 - Step 4: Simplify right side
387,532.64x = 70,389,872,918.16 - Step 5: Solve for x
x = 70,389,872,918.16/387,532.64 - Step 6: Final answer
x = 181,635.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.