Finding the Fourth Proportional to 415,497.42, 573,430.52 and 243,559.87
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Solution
The fourth proportional to 415,497.42, 573,430.52 and 243,559.87 is: 336,138.46
Step by Step Solution
- Step 1: Write the proportion equation
415,497.42 : 573,430.52 = 243,559.87 : x - Step 2: Convert to fraction form
415,497.42/573,430.52 = 243,559.87/x - Step 3: Cross multiply
415,497.42x = 573,430.52 × 243,559.87 - Step 4: Simplify right side
415,497.42x = 139,664,662,905.23 - Step 5: Solve for x
x = 139,664,662,905.23/415,497.42 - Step 6: Final answer
x = 336,138.46
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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.