Finding the Fourth Proportional to 390,827.36, 586,239.52 and 166,152.80
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Solution
The fourth proportional to 390,827.36, 586,239.52 and 166,152.80 is: 249,228.55
Step by Step Solution
- Step 1: Write the proportion equation
390,827.36 : 586,239.52 = 166,152.80 : x - Step 2: Convert to fraction form
390,827.36/586,239.52 = 166,152.80/x - Step 3: Cross multiply
390,827.36x = 586,239.52 × 166,152.80 - Step 4: Simplify right side
390,827.36x = 97,405,337,718.66 - Step 5: Solve for x
x = 97,405,337,718.66/390,827.36 - Step 6: Final answer
x = 249,228.55
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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.