Finding the Fourth Proportional to 380,248.09, 524,742.36 and 210,482.21
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Solution
The fourth proportional to 380,248.09, 524,742.36 and 210,482.21 is: 290,465.45
Step by Step Solution
- Step 1: Write the proportion equation
380,248.09 : 524,742.36 = 210,482.21 : x - Step 2: Convert to fraction form
380,248.09/524,742.36 = 210,482.21/x - Step 3: Cross multiply
380,248.09x = 524,742.36 × 210,482.21 - Step 4: Simplify right side
380,248.09x = 110,448,931,613.42 - Step 5: Solve for x
x = 110,448,931,613.42/380,248.09 - Step 6: Final answer
x = 290,465.45
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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.