Finding the Fourth Proportional to 257,497.92, 355,363.56 and 142,789.68
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Solution
The fourth proportional to 257,497.92, 355,363.56 and 142,789.68 is: 197,058.87
Step by Step Solution
- Step 1: Write the proportion equation
257,497.92 : 355,363.56 = 142,789.68 : x - Step 2: Convert to fraction form
257,497.92/355,363.56 = 142,789.68/x - Step 3: Cross multiply
257,497.92x = 355,363.56 × 142,789.68 - Step 4: Simplify right side
257,497.92x = 50,742,249,016.06 - Step 5: Solve for x
x = 50,742,249,016.06/257,497.92 - Step 6: Final answer
x = 197,058.87
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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.