Finding the Fourth Proportional to 346,579.75, 478,280.06 and 187,603.75
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Solution
The fourth proportional to 346,579.75, 478,280.06 and 187,603.75 is: 258,893.18
Step by Step Solution
- Step 1: Write the proportion equation
346,579.75 : 478,280.06 = 187,603.75 : x - Step 2: Convert to fraction form
346,579.75/478,280.06 = 187,603.75/x - Step 3: Cross multiply
346,579.75x = 478,280.06 × 187,603.75 - Step 4: Simplify right side
346,579.75x = 89,727,132,806.23 - Step 5: Solve for x
x = 89,727,132,806.23/346,579.75 - Step 6: Final answer
x = 258,893.18
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1.5x scale
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.