Finding the Fourth Proportional to 318,985.08, 478,478.12 and 299,498.88
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Solution
The fourth proportional to 318,985.08, 478,478.12 and 299,498.88 is: 449,248.79
Step by Step Solution
- Step 1: Write the proportion equation
318,985.08 : 478,478.12 = 299,498.88 : x - Step 2: Convert to fraction form
318,985.08/478,478.12 = 299,498.88/x - Step 3: Cross multiply
318,985.08x = 478,478.12 × 299,498.88 - Step 4: Simplify right side
318,985.08x = 143,303,661,044.51 - Step 5: Solve for x
x = 143,303,661,044.51/318,985.08 - Step 6: Final answer
x = 449,248.79
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1.5x scale
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.