Finding the Fourth Proportional to 302,489.76, 417,970.08 and 239,329.20
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Solution
The fourth proportional to 302,489.76, 417,970.08 and 239,329.20 is: 330,696.96
Step by Step Solution
- Step 1: Write the proportion equation
302,489.76 : 417,970.08 = 239,329.20 : x - Step 2: Convert to fraction form
302,489.76/417,970.08 = 239,329.20/x - Step 3: Cross multiply
302,489.76x = 417,970.08 × 239,329.20 - Step 4: Simplify right side
302,489.76x = 100,032,444,870.34 - Step 5: Solve for x
x = 100,032,444,870.34/302,489.76 - Step 6: Final answer
x = 330,696.96
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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.