Finding the Fourth Proportional to 292,973.80, 439,460.70 and 143,285.80
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Solution
The fourth proportional to 292,973.80, 439,460.70 and 143,285.80 is: 214,928.70
Step by Step Solution
- Step 1: Write the proportion equation
292,973.80 : 439,460.70 = 143,285.80 : x - Step 2: Convert to fraction form
292,973.80/439,460.70 = 143,285.80/x - Step 3: Cross multiply
292,973.80x = 439,460.70 × 143,285.80 - Step 4: Simplify right side
292,973.80x = 62,968,477,968.06 - Step 5: Solve for x
x = 62,968,477,968.06/292,973.80 - Step 6: Final answer
x = 214,928.70
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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.