Finding the Fourth Proportional to 313,723.68, 432,937.80 and 170,483.76
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Solution
The fourth proportional to 313,723.68, 432,937.80 and 170,483.76 is: 235,267.11
Step by Step Solution
- Step 1: Write the proportion equation
313,723.68 : 432,937.80 = 170,483.76 : x - Step 2: Convert to fraction form
313,723.68/432,937.80 = 170,483.76/x - Step 3: Cross multiply
313,723.68x = 432,937.80 × 170,483.76 - Step 4: Simplify right side
313,723.68x = 73,808,863,990.13 - Step 5: Solve for x
x = 73,808,863,990.13/313,723.68 - Step 6: Final answer
x = 235,267.11
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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.