Finding the Fourth Proportional to 153,330.18, 211,595.67 and 85,345.71
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Solution
The fourth proportional to 153,330.18, 211,595.67 and 85,345.71 is: 117,777.09
Step by Step Solution
- Step 1: Write the proportion equation
153,330.18 : 211,595.67 = 85,345.71 : x - Step 2: Convert to fraction form
153,330.18/211,595.67 = 85,345.71/x - Step 3: Cross multiply
153,330.18x = 211,595.67 × 85,345.71 - Step 4: Simplify right side
153,330.18x = 18,058,782,689.08 - Step 5: Solve for x
x = 18,058,782,689.08/153,330.18 - Step 6: Final answer
x = 117,777.09
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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.