Finding the Fourth Proportional to 165,456.99, 228,332.93 and 90,005.49
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Solution
The fourth proportional to 165,456.99, 228,332.93 and 90,005.49 is: 124,208.82
Step by Step Solution
- Step 1: Write the proportion equation
165,456.99 : 228,332.93 = 90,005.49 : x - Step 2: Convert to fraction form
165,456.99/228,332.93 = 90,005.49/x - Step 3: Cross multiply
165,456.99x = 228,332.93 × 90,005.49 - Step 4: Simplify right side
165,456.99x = 20,551,216,797.76 - Step 5: Solve for x
x = 20,551,216,797.76/165,456.99 - Step 6: Final answer
x = 124,208.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.