Finding the Fourth Proportional to 354,541.99, 489,271.07 and 193,397.76
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Solution
The fourth proportional to 354,541.99, 489,271.07 and 193,397.76 is: 266,890.61
Step by Step Solution
- Step 1: Write the proportion equation
354,541.99 : 489,271.07 = 193,397.76 : x - Step 2: Convert to fraction form
354,541.99/489,271.07 = 193,397.76/x - Step 3: Cross multiply
354,541.99x = 489,271.07 × 193,397.76 - Step 4: Simplify right side
354,541.99x = 94,623,928,970.80 - Step 5: Solve for x
x = 94,623,928,970.80/354,541.99 - Step 6: Final answer
x = 266,890.61
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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.