Finding the Fourth Proportional to 400,292.29, 552,312.93 and 239,115.79
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Solution
The fourth proportional to 400,292.29, 552,312.93 and 239,115.79 is: 329,925.77
Step by Step Solution
- Step 1: Write the proportion equation
400,292.29 : 552,312.93 = 239,115.79 : x - Step 2: Convert to fraction form
400,292.29/552,312.93 = 239,115.79/x - Step 3: Cross multiply
400,292.29x = 552,312.93 × 239,115.79 - Step 4: Simplify right side
400,292.29x = 132,066,742,584.17 - Step 5: Solve for x
x = 132,066,742,584.17/400,292.29 - Step 6: Final answer
x = 329,925.77
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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.