Finding the Fourth Proportional to 508,830.70, 763,246.05 and 153,807.70
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Solution
The fourth proportional to 508,830.70, 763,246.05 and 153,807.70 is: 230,711.55
Step by Step Solution
- Step 1: Write the proportion equation
508,830.70 : 763,246.05 = 153,807.70 : x - Step 2: Convert to fraction form
508,830.70/763,246.05 = 153,807.70/x - Step 3: Cross multiply
508,830.70x = 763,246.05 × 153,807.70 - Step 4: Simplify right side
508,830.70x = 117,393,119,484.59 - Step 5: Solve for x
x = 117,393,119,484.59/508,830.70 - Step 6: Final answer
x = 230,711.55
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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.