Finding the Fourth Proportional to 292,402.60, 438,749.70 and 166,139.80
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Solution
The fourth proportional to 292,402.60, 438,749.70 and 166,139.80 is: 249,292.54
Step by Step Solution
- Step 1: Write the proportion equation
292,402.60 : 438,749.70 = 166,139.80 : x - Step 2: Convert to fraction form
292,402.60/438,749.70 = 166,139.80/x - Step 3: Cross multiply
292,402.60x = 438,749.70 × 166,139.80 - Step 4: Simplify right side
292,402.60x = 72,893,787,408.06 - Step 5: Solve for x
x = 72,893,787,408.06/292,402.60 - Step 6: Final answer
x = 249,292.54
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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.