Finding the Fourth Proportional to 390,696.24, 539,164.08 and 211,848.24
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Solution
The fourth proportional to 390,696.24, 539,164.08 and 211,848.24 is: 292,352.34
Step by Step Solution
- Step 1: Write the proportion equation
390,696.24 : 539,164.08 = 211,848.24 : x - Step 2: Convert to fraction form
390,696.24/539,164.08 = 211,848.24/x - Step 3: Cross multiply
390,696.24x = 539,164.08 × 211,848.24 - Step 4: Simplify right side
390,696.24x = 114,220,961,419.22 - Step 5: Solve for x
x = 114,220,961,419.22/390,696.24 - Step 6: Final answer
x = 292,352.34
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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.