Finding the Fourth Proportional to 407,009.30, 610,368.14 and 207,263.30
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Solution
The fourth proportional to 407,009.30, 610,368.14 and 207,263.30 is: 310,820.70
Step by Step Solution
- Step 1: Write the proportion equation
407,009.30 : 610,368.14 = 207,263.30 : x - Step 2: Convert to fraction form
407,009.30/610,368.14 = 207,263.30/x - Step 3: Cross multiply
407,009.30x = 610,368.14 × 207,263.30 - Step 4: Simplify right side
407,009.30x = 126,506,914,911.26 - Step 5: Solve for x
x = 126,506,914,911.26/407,009.30 - Step 6: Final answer
x = 310,820.70
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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.