Finding the Fourth Proportional to 340,423.12, 510,708.08 and 169,737.90
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Solution
The fourth proportional to 340,423.12, 510,708.08 and 169,737.90 is: 254,643.45
Step by Step Solution
- Step 1: Write the proportion equation
340,423.12 : 510,708.08 = 169,737.90 : x - Step 2: Convert to fraction form
340,423.12/510,708.08 = 169,737.90/x - Step 3: Cross multiply
340,423.12x = 510,708.08 × 169,737.90 - Step 4: Simplify right side
340,423.12x = 86,686,517,012.23 - Step 5: Solve for x
x = 86,686,517,012.23/340,423.12 - Step 6: Final answer
x = 254,643.45
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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.