Finding the Fourth Proportional to 354,088.60, 489,263.88 and 283,054.84
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Solution
The fourth proportional to 354,088.60, 489,263.88 and 283,054.84 is: 391,112.59
Step by Step Solution
- Step 1: Write the proportion equation
354,088.60 : 489,263.88 = 283,054.84 : x - Step 2: Convert to fraction form
354,088.60/489,263.88 = 283,054.84/x - Step 3: Cross multiply
354,088.60x = 489,263.88 × 283,054.84 - Step 4: Simplify right side
354,088.60x = 138,488,509,271.18 - Step 5: Solve for x
x = 138,488,509,271.18/354,088.60 - Step 6: Final answer
x = 391,112.59
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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.