Finding the Fourth Proportional to 420,029.50, 579,655.30 and 238,749.08
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Solution
The fourth proportional to 420,029.50, 579,655.30 and 238,749.08 is: 329,482.02
Step by Step Solution
- Step 1: Write the proportion equation
420,029.50 : 579,655.30 = 238,749.08 : x - Step 2: Convert to fraction form
420,029.50/579,655.30 = 238,749.08/x - Step 3: Cross multiply
420,029.50x = 579,655.30 × 238,749.08 - Step 4: Simplify right side
420,029.50x = 138,392,169,592.12 - Step 5: Solve for x
x = 138,392,169,592.12/420,029.50 - Step 6: Final answer
x = 329,482.02
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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.