Finding the Fourth Proportional to 316,128.13, 474,526.40 and 308,988.95
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Solution
The fourth proportional to 316,128.13, 474,526.40 and 308,988.95 is: 463,810.07
Step by Step Solution
- Step 1: Write the proportion equation
316,128.13 : 474,526.40 = 308,988.95 : x - Step 2: Convert to fraction form
316,128.13/474,526.40 = 308,988.95/x - Step 3: Cross multiply
316,128.13x = 474,526.40 × 308,988.95 - Step 4: Simplify right side
316,128.13x = 146,623,410,165.70 - Step 5: Solve for x
x = 146,623,410,165.70/316,128.13 - Step 6: Final answer
x = 463,810.07
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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.