Finding the Fourth Proportional to 390,877.38, 586,305.14 and 166,125.06
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Solution
The fourth proportional to 390,877.38, 586,305.14 and 166,125.06 is: 249,182.94
Step by Step Solution
- Step 1: Write the proportion equation
390,877.38 : 586,305.14 = 166,125.06 : x - Step 2: Convert to fraction form
390,877.38/586,305.14 = 166,125.06/x - Step 3: Cross multiply
390,877.38x = 586,305.14 × 166,125.06 - Step 4: Simplify right side
390,877.38x = 97,399,975,730.18 - Step 5: Solve for x
x = 97,399,975,730.18/390,877.38 - Step 6: Final answer
x = 249,182.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.