Finding the Fourth Proportional to 291,633.74, 402,454.47 and 157,497.74
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Solution
The fourth proportional to 291,633.74, 402,454.47 and 157,497.74 is: 217,346.83
Step by Step Solution
- Step 1: Write the proportion equation
291,633.74 : 402,454.47 = 157,497.74 : x - Step 2: Convert to fraction form
291,633.74/402,454.47 = 157,497.74/x - Step 3: Cross multiply
291,633.74x = 402,454.47 × 157,497.74 - Step 4: Simplify right side
291,633.74x = 63,385,669,477.90 - Step 5: Solve for x
x = 63,385,669,477.90/291,633.74 - Step 6: Final answer
x = 217,346.83
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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.