Finding the Fourth Proportional to 212,038.29, 292,681.04 and 135,762.84
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Solution
The fourth proportional to 212,038.29, 292,681.04 and 135,762.84 is: 187,396.38
Step by Step Solution
- Step 1: Write the proportion equation
212,038.29 : 292,681.04 = 135,762.84 : x - Step 2: Convert to fraction form
212,038.29/292,681.04 = 135,762.84/x - Step 3: Cross multiply
212,038.29x = 292,681.04 × 135,762.84 - Step 4: Simplify right side
212,038.29x = 39,735,208,525.74 - Step 5: Solve for x
x = 39,735,208,525.74/212,038.29 - Step 6: Final answer
x = 187,396.38
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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.