Finding the Fourth Proportional to 631,405.18, 947,115.97 and 210,681.05
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Solution
The fourth proportional to 631,405.18, 947,115.97 and 210,681.05 is: 316,024.31
Step by Step Solution
- Step 1: Write the proportion equation
631,405.18 : 947,115.97 = 210,681.05 : x - Step 2: Convert to fraction form
631,405.18/947,115.97 = 210,681.05/x - Step 3: Cross multiply
631,405.18x = 947,115.97 × 210,681.05 - Step 4: Simplify right side
631,405.18x = 199,539,387,031.37 - Step 5: Solve for x
x = 199,539,387,031.37/631,405.18 - Step 6: Final answer
x = 316,024.31
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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.