Finding the Fourth Proportional to 288,038.62, 432,278.46 and 130,377.79
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Solution
The fourth proportional to 288,038.62, 432,278.46 and 130,377.79 is: 195,666.50
Step by Step Solution
- Step 1: Write the proportion equation
288,038.62 : 432,278.46 = 130,377.79 : x - Step 2: Convert to fraction form
288,038.62/432,278.46 = 130,377.79/x - Step 3: Cross multiply
288,038.62x = 432,278.46 × 130,377.79 - Step 4: Simplify right side
288,038.62x = 56,359,509,627.51 - Step 5: Solve for x
x = 56,359,509,627.51/288,038.62 - Step 6: Final answer
x = 195,666.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.