Finding the Fourth Proportional to 358,434.15, 537,652.63 and 145,206.09
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Solution
The fourth proportional to 358,434.15, 537,652.63 and 145,206.09 is: 217,809.71
Step by Step Solution
- Step 1: Write the proportion equation
358,434.15 : 537,652.63 = 145,206.09 : x - Step 2: Convert to fraction form
358,434.15/537,652.63 = 145,206.09/x - Step 3: Cross multiply
358,434.15x = 537,652.63 × 145,206.09 - Step 4: Simplify right side
358,434.15x = 78,070,435,454.49 - Step 5: Solve for x
x = 78,070,435,454.49/358,434.15 - Step 6: Final answer
x = 217,809.71
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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.