Finding the Fourth Proportional to 353,931.84, 488,903.76 and 282,810.96
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Solution
The fourth proportional to 353,931.84, 488,903.76 and 282,810.96 is: 390,660.93
Step by Step Solution
- Step 1: Write the proportion equation
353,931.84 : 488,903.76 = 282,810.96 : x - Step 2: Convert to fraction form
353,931.84/488,903.76 = 282,810.96/x - Step 3: Cross multiply
353,931.84x = 488,903.76 × 282,810.96 - Step 4: Simplify right side
353,931.84x = 138,267,341,713.21 - Step 5: Solve for x
x = 138,267,341,713.21/353,931.84 - Step 6: Final answer
x = 390,660.93
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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.