Finding the Fourth Proportional to 423,206.47, 634,807.58 and 149,855.47
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Solution
The fourth proportional to 423,206.47, 634,807.58 and 149,855.47 is: 224,782.45
Step by Step Solution
- Step 1: Write the proportion equation
423,206.47 : 634,807.58 = 149,855.47 : x - Step 2: Convert to fraction form
423,206.47/634,807.58 = 149,855.47/x - Step 3: Cross multiply
423,206.47x = 634,807.58 × 149,855.47 - Step 4: Simplify right side
423,206.47x = 95,129,386,767.10 - Step 5: Solve for x
x = 95,129,386,767.10/423,206.47 - Step 6: Final answer
x = 224,782.45
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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.