Finding the Fourth Proportional to 390,881.02, 586,407.62 and 222,480.63
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Solution
The fourth proportional to 390,881.02, 586,407.62 and 222,480.63 is: 333,769.95
Step by Step Solution
- Step 1: Write the proportion equation
390,881.02 : 586,407.62 = 222,480.63 : x - Step 2: Convert to fraction form
390,881.02/586,407.62 = 222,480.63/x - Step 3: Cross multiply
390,881.02x = 586,407.62 × 222,480.63 - Step 4: Simplify right side
390,881.02x = 130,464,336,734.40 - Step 5: Solve for x
x = 130,464,336,734.40/390,881.02 - Step 6: Final answer
x = 333,769.95
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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.