Finding the Fourth Proportional to 518,497.80, 777,746.70 and 163,547.70
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Solution
The fourth proportional to 518,497.80, 777,746.70 and 163,547.70 is: 245,321.55
Step by Step Solution
- Step 1: Write the proportion equation
518,497.80 : 777,746.70 = 163,547.70 : x - Step 2: Convert to fraction form
518,497.80/777,746.70 = 163,547.70/x - Step 3: Cross multiply
518,497.80x = 777,746.70 × 163,547.70 - Step 4: Simplify right side
518,497.80x = 127,198,683,967.59 - Step 5: Solve for x
x = 127,198,683,967.59/518,497.80 - Step 6: Final answer
x = 245,321.55
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Similar ratio
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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.