Finding the Fourth Proportional to 369,432.78, 553,149.70 and 191,565.88
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Solution
The fourth proportional to 369,432.78, 553,149.70 and 191,565.88 is: 286,830.55
Step by Step Solution
- Step 1: Write the proportion equation
369,432.78 : 553,149.70 = 191,565.88 : x - Step 2: Convert to fraction form
369,432.78/553,149.70 = 191,565.88/x - Step 3: Cross multiply
369,432.78x = 553,149.70 × 191,565.88 - Step 4: Simplify right side
369,432.78x = 105,964,609,052.24 - Step 5: Solve for x
x = 105,964,609,052.24/369,432.78 - Step 6: Final answer
x = 286,830.55
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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.