Finding the Fourth Proportional to 438,203.61, 657,378.05 and 153,820.35
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Solution
The fourth proportional to 438,203.61, 657,378.05 and 153,820.35 is: 230,756.02
Step by Step Solution
- Step 1: Write the proportion equation
438,203.61 : 657,378.05 = 153,820.35 : x - Step 2: Convert to fraction form
438,203.61/657,378.05 = 153,820.35/x - Step 3: Cross multiply
438,203.61x = 657,378.05 × 153,820.35 - Step 4: Simplify right side
438,203.61x = 101,118,120,964.22 - Step 5: Solve for x
x = 101,118,120,964.22/438,203.61 - Step 6: Final answer
x = 230,756.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.