Finding the Fourth Proportional to 387,962.58, 581,798.66 and 135,178.18
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Solution
The fourth proportional to 387,962.58, 581,798.66 and 135,178.18 is: 202,716.67
Step by Step Solution
- Step 1: Write the proportion equation
387,962.58 : 581,798.66 = 135,178.18 : x - Step 2: Convert to fraction form
387,962.58/581,798.66 = 135,178.18/x - Step 3: Cross multiply
387,962.58x = 581,798.66 × 135,178.18 - Step 4: Simplify right side
387,962.58x = 78,646,483,985.24 - Step 5: Solve for x
x = 78,646,483,985.24/387,962.58 - Step 6: Final answer
x = 202,716.67
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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.