Finding the Fourth Proportional to 472,088.75, 651,482.55 and 257,228.84
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Solution
The fourth proportional to 472,088.75, 651,482.55 and 257,228.84 is: 354,975.84
Step by Step Solution
- Step 1: Write the proportion equation
472,088.75 : 651,482.55 = 257,228.84 : x - Step 2: Convert to fraction form
472,088.75/651,482.55 = 257,228.84/x - Step 3: Cross multiply
472,088.75x = 651,482.55 × 257,228.84 - Step 4: Simplify right side
472,088.75x = 167,580,100,616.74 - Step 5: Solve for x
x = 167,580,100,616.74/472,088.75 - Step 6: Final answer
x = 354,975.84
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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.