Finding the Fourth Proportional to 381,303.05, 526,214.69 and 228,312.03
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Solution
The fourth proportional to 381,303.05, 526,214.69 and 228,312.03 is: 315,080.47
Step by Step Solution
- Step 1: Write the proportion equation
381,303.05 : 526,214.69 = 228,312.03 : x - Step 2: Convert to fraction form
381,303.05/526,214.69 = 228,312.03/x - Step 3: Cross multiply
381,303.05x = 526,214.69 × 228,312.03 - Step 4: Simplify right side
381,303.05x = 120,141,142,948.16 - Step 5: Solve for x
x = 120,141,142,948.16/381,303.05 - Step 6: Final answer
x = 315,080.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.