Finding the Fourth Proportional to 291,980.97, 437,970.74 and 70,364.97
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Solution
The fourth proportional to 291,980.97, 437,970.74 and 70,364.97 is: 105,547.28
Step by Step Solution
- Step 1: Write the proportion equation
291,980.97 : 437,970.74 = 70,364.97 : x - Step 2: Convert to fraction form
291,980.97/437,970.74 = 70,364.97/x - Step 3: Cross multiply
291,980.97x = 437,970.74 × 70,364.97 - Step 4: Simplify right side
291,980.97x = 30,817,797,629.15 - Step 5: Solve for x
x = 30,817,797,629.15/291,980.97 - Step 6: Final answer
x = 105,547.28
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1.5x scale
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.