Finding the Fourth Proportional to 631,405.32, 947,116.18 and 210,681.19
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Solution
The fourth proportional to 631,405.32, 947,116.18 and 210,681.19 is: 316,024.52
Step by Step Solution
- Step 1: Write the proportion equation
631,405.32 : 947,116.18 = 210,681.19 : x - Step 2: Convert to fraction form
631,405.32/947,116.18 = 210,681.19/x - Step 3: Cross multiply
631,405.32x = 947,116.18 × 210,681.19 - Step 4: Simplify right side
631,405.32x = 199,539,563,870.65 - Step 5: Solve for x
x = 199,539,563,870.65/631,405.32 - Step 6: Final answer
x = 316,024.52
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1.5x scale
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.