Finding the Fourth Proportional to 470,987.19, 706,381.86 and 155,370.15
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Solution
The fourth proportional to 470,987.19, 706,381.86 and 155,370.15 is: 233,022.59
Step by Step Solution
- Step 1: Write the proportion equation
470,987.19 : 706,381.86 = 155,370.15 : x - Step 2: Convert to fraction form
470,987.19/706,381.86 = 155,370.15/x - Step 3: Cross multiply
470,987.19x = 706,381.86 × 155,370.15 - Step 4: Simplify right side
470,987.19x = 109,750,655,545.48 - Step 5: Solve for x
x = 109,750,655,545.48/470,987.19 - Step 6: Final answer
x = 233,022.59
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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.