Finding the Fourth Proportional to 421,669.08, 632,588.28 and 155,430.96
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Solution
The fourth proportional to 421,669.08, 632,588.28 and 155,430.96 is: 233,177.65
Step by Step Solution
- Step 1: Write the proportion equation
421,669.08 : 632,588.28 = 155,430.96 : x - Step 2: Convert to fraction form
421,669.08/632,588.28 = 155,430.96/x - Step 3: Cross multiply
421,669.08x = 632,588.28 × 155,430.96 - Step 4: Simplify right side
421,669.08x = 98,323,803,645.15 - Step 5: Solve for x
x = 98,323,803,645.15/421,669.08 - Step 6: Final answer
x = 233,177.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.