Finding the Fourth Proportional to 351,355.23, 485,687.40 and 313,490.07
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Solution
The fourth proportional to 351,355.23, 485,687.40 and 313,490.07 is: 433,345.41
Step by Step Solution
- Step 1: Write the proportion equation
351,355.23 : 485,687.40 = 313,490.07 : x - Step 2: Convert to fraction form
351,355.23/485,687.40 = 313,490.07/x - Step 3: Cross multiply
351,355.23x = 485,687.40 × 313,490.07 - Step 4: Simplify right side
351,355.23x = 152,258,177,024.12 - Step 5: Solve for x
x = 152,258,177,024.12/351,355.23 - Step 6: Final answer
x = 433,345.41
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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.