Finding the Fourth Proportional to 282,926.12, 390,439.62 and 153,866.09
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Solution
The fourth proportional to 282,926.12, 390,439.62 and 153,866.09 is: 212,336.06
Step by Step Solution
- Step 1: Write the proportion equation
282,926.12 : 390,439.62 = 153,866.09 : x - Step 2: Convert to fraction form
282,926.12/390,439.62 = 153,866.09/x - Step 3: Cross multiply
282,926.12x = 390,439.62 × 153,866.09 - Step 4: Simplify right side
282,926.12x = 60,075,415,758.29 - Step 5: Solve for x
x = 60,075,415,758.29/282,926.12 - Step 6: Final answer
x = 212,336.06
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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.