Finding the Fourth Proportional to 306,860.24, 423,345.48 and 187,697.36
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Solution
The fourth proportional to 306,860.24, 423,345.48 and 187,697.36 is: 258,947.95
Step by Step Solution
- Step 1: Write the proportion equation
306,860.24 : 423,345.48 = 187,697.36 : x - Step 2: Convert to fraction form
306,860.24/423,345.48 = 187,697.36/x - Step 3: Cross multiply
306,860.24x = 423,345.48 × 187,697.36 - Step 4: Simplify right side
306,860.24x = 79,460,828,963.93 - Step 5: Solve for x
x = 79,460,828,963.93/306,860.24 - Step 6: Final answer
x = 258,947.95
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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.