Finding the Fourth Proportional to 611,539.80, 917,309.70 and 162,259.80
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Solution
The fourth proportional to 611,539.80, 917,309.70 and 162,259.80 is: 243,389.70
Step by Step Solution
- Step 1: Write the proportion equation
611,539.80 : 917,309.70 = 162,259.80 : x - Step 2: Convert to fraction form
611,539.80/917,309.70 = 162,259.80/x - Step 3: Cross multiply
611,539.80x = 917,309.70 × 162,259.80 - Step 4: Simplify right side
611,539.80x = 148,842,488,460.06 - Step 5: Solve for x
x = 148,842,488,460.06/611,539.80 - Step 6: Final answer
x = 243,389.70
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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.