Finding the Fourth Proportional to 316,707.79, 437,056.80 and 173,472.95
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Solution
The fourth proportional to 316,707.79, 437,056.80 and 173,472.95 is: 239,392.71
Step by Step Solution
- Step 1: Write the proportion equation
316,707.79 : 437,056.80 = 173,472.95 : x - Step 2: Convert to fraction form
316,707.79/437,056.80 = 173,472.95/x - Step 3: Cross multiply
316,707.79x = 437,056.80 × 173,472.95 - Step 4: Simplify right side
316,707.79x = 75,817,534,202.13 - Step 5: Solve for x
x = 75,817,534,202.13/316,707.79 - Step 6: Final answer
x = 239,392.71
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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.