Finding the Fourth Proportional to 402,272.80, 602,890.80 and 308,312.80
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Solution
The fourth proportional to 402,272.80, 602,890.80 and 308,312.80 is: 462,071.88
Step by Step Solution
- Step 1: Write the proportion equation
402,272.80 : 602,890.80 = 308,312.80 : x - Step 2: Convert to fraction form
402,272.80/602,890.80 = 308,312.80/x - Step 3: Cross multiply
402,272.80x = 602,890.80 × 308,312.80 - Step 4: Simplify right side
402,272.80x = 185,878,950,642.24 - Step 5: Solve for x
x = 185,878,950,642.24/402,272.80 - Step 6: Final answer
x = 462,071.88
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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.