Finding the Fourth Proportional to 249,915.80, 374,873.70 and 83,703.80
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Solution
The fourth proportional to 249,915.80, 374,873.70 and 83,703.80 is: 125,555.70
Step by Step Solution
- Step 1: Write the proportion equation
249,915.80 : 374,873.70 = 83,703.80 : x - Step 2: Convert to fraction form
249,915.80/374,873.70 = 83,703.80/x - Step 3: Cross multiply
249,915.80x = 374,873.70 × 83,703.80 - Step 4: Simplify right side
249,915.80x = 31,378,353,210.06 - Step 5: Solve for x
x = 31,378,353,210.06/249,915.80 - Step 6: Final answer
x = 125,555.70
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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.