Finding the Fourth Proportional to 389,246.40, 583,869.60 and 249,163.20
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Solution
The fourth proportional to 389,246.40, 583,869.60 and 249,163.20 is: 373,744.80
Step by Step Solution
- Step 1: Write the proportion equation
389,246.40 : 583,869.60 = 249,163.20 : x - Step 2: Convert to fraction form
389,246.40/583,869.60 = 249,163.20/x - Step 3: Cross multiply
389,246.40x = 583,869.60 × 249,163.20 - Step 4: Simplify right side
389,246.40x = 145,478,817,918.72 - Step 5: Solve for x
x = 145,478,817,918.72/389,246.40 - Step 6: Final answer
x = 373,744.80
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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.