Finding the Fourth Proportional to 409,433.87, 565,012.98 and 228,153.44
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Solution
The fourth proportional to 409,433.87, 565,012.98 and 228,153.44 is: 314,848.53
Step by Step Solution
- Step 1: Write the proportion equation
409,433.87 : 565,012.98 = 228,153.44 : x - Step 2: Convert to fraction form
409,433.87/565,012.98 = 228,153.44/x - Step 3: Cross multiply
409,433.87x = 565,012.98 × 228,153.44 - Step 4: Simplify right side
409,433.87x = 128,909,652,206.59 - Step 5: Solve for x
x = 128,909,652,206.59/409,433.87 - Step 6: Final answer
x = 314,848.53
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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.