Finding the Fourth Proportional to 288,585.70, 432,878.55 and 239,433.70
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Solution
The fourth proportional to 288,585.70, 432,878.55 and 239,433.70 is: 359,150.55
Step by Step Solution
- Step 1: Write the proportion equation
288,585.70 : 432,878.55 = 239,433.70 : x - Step 2: Convert to fraction form
288,585.70/432,878.55 = 239,433.70/x - Step 3: Cross multiply
288,585.70x = 432,878.55 × 239,433.70 - Step 4: Simplify right side
288,585.70x = 103,645,712,877.14 - Step 5: Solve for x
x = 103,645,712,877.14/288,585.70 - Step 6: Final answer
x = 359,150.55
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1.5x scale
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.