Finding the Fourth Proportional to 644,154.11, 965,931.30 and 239,064.09
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Solution
The fourth proportional to 644,154.11, 965,931.30 and 239,064.09 is: 358,484.85
Step by Step Solution
- Step 1: Write the proportion equation
644,154.11 : 965,931.30 = 239,064.09 : x - Step 2: Convert to fraction form
644,154.11/965,931.30 = 239,064.09/x - Step 3: Cross multiply
644,154.11x = 965,931.30 × 239,064.09 - Step 4: Simplify right side
644,154.11x = 230,919,487,237.02 - Step 5: Solve for x
x = 230,919,487,237.02/644,154.11 - Step 6: Final answer
x = 358,484.85
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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.