Finding the Fourth Proportional to 287,386.13, 431,460.70 and 245,535.05
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Solution
The fourth proportional to 287,386.13, 431,460.70 and 245,535.05 is: 368,628.52
Step by Step Solution
- Step 1: Write the proportion equation
287,386.13 : 431,460.70 = 245,535.05 : x - Step 2: Convert to fraction form
287,386.13/431,460.70 = 245,535.05/x - Step 3: Cross multiply
287,386.13x = 431,460.70 × 245,535.05 - Step 4: Simplify right side
287,386.13x = 105,938,724,547.54 - Step 5: Solve for x
x = 105,938,724,547.54/287,386.13 - Step 6: Final answer
x = 368,628.52
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1.5x scale
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.