Finding the Fourth Proportional to 390,143.70, 585,098.91 and 203,053.14
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Solution
The fourth proportional to 390,143.70, 585,098.91 and 203,053.14 is: 304,519.00
Step by Step Solution
- Step 1: Write the proportion equation
390,143.70 : 585,098.91 = 203,053.14 : x - Step 2: Convert to fraction form
390,143.70/585,098.91 = 203,053.14/x - Step 3: Cross multiply
390,143.70x = 585,098.91 × 203,053.14 - Step 4: Simplify right side
390,143.70x = 118,806,170,886.08 - Step 5: Solve for x
x = 118,806,170,886.08/390,143.70 - Step 6: Final answer
x = 304,519.00
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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.