Finding the Fourth Proportional to 474,663.68, 711,904.76 and 142,239.68
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Solution
The fourth proportional to 474,663.68, 711,904.76 and 142,239.68 is: 213,332.32
Step by Step Solution
- Step 1: Write the proportion equation
474,663.68 : 711,904.76 = 142,239.68 : x - Step 2: Convert to fraction form
474,663.68/711,904.76 = 142,239.68/x - Step 3: Cross multiply
474,663.68x = 711,904.76 × 142,239.68 - Step 4: Simplify right side
474,663.68x = 101,261,105,252.88 - Step 5: Solve for x
x = 101,261,105,252.88/474,663.68 - Step 6: Final answer
x = 213,332.32
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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.