Finding the Fourth Proportional to 156,988.08, 235,479.96 and 38,660.40
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Solution
The fourth proportional to 156,988.08, 235,479.96 and 38,660.40 is: 57,990.07
Step by Step Solution
- Step 1: Write the proportion equation
156,988.08 : 235,479.96 = 38,660.40 : x - Step 2: Convert to fraction form
156,988.08/235,479.96 = 38,660.40/x - Step 3: Cross multiply
156,988.08x = 235,479.96 × 38,660.40 - Step 4: Simplify right side
156,988.08x = 9,103,749,445.58 - Step 5: Solve for x
x = 9,103,749,445.58/156,988.08 - Step 6: Final answer
x = 57,990.07
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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.