Finding the Fourth Proportional to 278,248.95, 417,389.58 and 78,552.62
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Solution
The fourth proportional to 278,248.95, 417,389.58 and 78,552.62 is: 117,833.49
Step by Step Solution
- Step 1: Write the proportion equation
278,248.95 : 417,389.58 = 78,552.62 : x - Step 2: Convert to fraction form
278,248.95/417,389.58 = 78,552.62/x - Step 3: Cross multiply
278,248.95x = 417,389.58 × 78,552.62 - Step 4: Simplify right side
278,248.95x = 32,787,044,547.96 - Step 5: Solve for x
x = 32,787,044,547.96/278,248.95 - Step 6: Final answer
x = 117,833.49
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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.