Finding the Fourth Proportional to 155,616.13, 233,239.65 and 139,746.70
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Solution
The fourth proportional to 155,616.13, 233,239.65 and 139,746.70 is: 209,454.32
Step by Step Solution
- Step 1: Write the proportion equation
155,616.13 : 233,239.65 = 139,746.70 : x - Step 2: Convert to fraction form
155,616.13/233,239.65 = 139,746.70/x - Step 3: Cross multiply
155,616.13x = 233,239.65 × 139,746.70 - Step 4: Simplify right side
155,616.13x = 32,594,471,396.66 - Step 5: Solve for x
x = 32,594,471,396.66/155,616.13 - Step 6: Final answer
x = 209,454.32
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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.