Finding the Fourth Proportional to 307,970.97, 424,957.94 and 171,987.59
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Solution
The fourth proportional to 307,970.97, 424,957.94 and 171,987.59 is: 237,319.41
Step by Step Solution
- Step 1: Write the proportion equation
307,970.97 : 424,957.94 = 171,987.59 : x - Step 2: Convert to fraction form
307,970.97/424,957.94 = 171,987.59/x - Step 3: Cross multiply
307,970.97x = 424,957.94 × 171,987.59 - Step 4: Simplify right side
307,970.97x = 73,087,488,967.24 - Step 5: Solve for x
x = 73,087,488,967.24/307,970.97 - Step 6: Final answer
x = 237,319.41
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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.