Finding the Fourth Proportional to 268,008.12, 369,778.95 and 153,263.09
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Solution
The fourth proportional to 268,008.12, 369,778.95 and 153,263.09 is: 211,461.74
Step by Step Solution
- Step 1: Write the proportion equation
268,008.12 : 369,778.95 = 153,263.09 : x - Step 2: Convert to fraction form
268,008.12/369,778.95 = 153,263.09/x - Step 3: Cross multiply
268,008.12x = 369,778.95 × 153,263.09 - Step 4: Simplify right side
268,008.12x = 56,673,462,645.06 - Step 5: Solve for x
x = 56,673,462,645.06/268,008.12 - Step 6: Final answer
x = 211,461.74
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1.5x scale
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.