Finding the Fourth Proportional to 312,130.83, 430,746.08 and 176,191.95
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Solution
The fourth proportional to 312,130.83, 430,746.08 and 176,191.95 is: 243,148.01
Step by Step Solution
- Step 1: Write the proportion equation
312,130.83 : 430,746.08 = 176,191.95 : x - Step 2: Convert to fraction form
312,130.83/430,746.08 = 176,191.95/x - Step 3: Cross multiply
312,130.83x = 430,746.08 × 176,191.95 - Step 4: Simplify right side
312,130.83x = 75,893,990,909.10 - Step 5: Solve for x
x = 75,893,990,909.10/312,130.83 - Step 6: Final answer
x = 243,148.01
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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.