Finding the Fourth Proportional to 420,526.08, 580,339.08 and 239,264.28
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Solution
The fourth proportional to 420,526.08, 580,339.08 and 239,264.28 is: 330,192.15
Step by Step Solution
- Step 1: Write the proportion equation
420,526.08 : 580,339.08 = 239,264.28 : x - Step 2: Convert to fraction form
420,526.08/580,339.08 = 239,264.28/x - Step 3: Cross multiply
420,526.08x = 580,339.08 × 239,264.28 - Step 4: Simplify right side
420,526.08x = 138,854,412,132.06 - Step 5: Solve for x
x = 138,854,412,132.06/420,526.08 - Step 6: Final answer
x = 330,192.15
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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.