Finding the Fourth Proportional to 155,320.12, 213,026.51 and 153,479.80
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Solution
The fourth proportional to 155,320.12, 213,026.51 and 153,479.80 is: 210,502.45
Step by Step Solution
- Step 1: Write the proportion equation
155,320.12 : 213,026.51 = 153,479.80 : x - Step 2: Convert to fraction form
155,320.12/213,026.51 = 153,479.80/x - Step 3: Cross multiply
155,320.12x = 213,026.51 × 153,479.80 - Step 4: Simplify right side
155,320.12x = 32,695,266,149.50 - Step 5: Solve for x
x = 32,695,266,149.50/155,320.12 - Step 6: Final answer
x = 210,502.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.