Finding the Fourth Proportional to 153,246.65, 211,579.16 and 98,823.15
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Solution
The fourth proportional to 153,246.65, 211,579.16 and 98,823.15 is: 136,439.65
Step by Step Solution
- Step 1: Write the proportion equation
153,246.65 : 211,579.16 = 98,823.15 : x - Step 2: Convert to fraction form
153,246.65/211,579.16 = 98,823.15/x - Step 3: Cross multiply
153,246.65x = 211,579.16 × 98,823.15 - Step 4: Simplify right side
153,246.65x = 20,908,918,571.44 - Step 5: Solve for x
x = 20,908,918,571.44/153,246.65 - Step 6: Final answer
x = 136,439.65
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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.