Finding the Fourth Proportional to 279,746.49, 386,052.99 and 152,424.21
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Solution
The fourth proportional to 279,746.49, 386,052.99 and 152,424.21 is: 210,346.95
Step by Step Solution
- Step 1: Write the proportion equation
279,746.49 : 386,052.99 = 152,424.21 : x - Step 2: Convert to fraction form
279,746.49/386,052.99 = 152,424.21/x - Step 3: Cross multiply
279,746.49x = 386,052.99 × 152,424.21 - Step 4: Simplify right side
279,746.49x = 58,843,822,018.89 - Step 5: Solve for x
x = 58,843,822,018.89/279,746.49 - Step 6: Final answer
x = 210,346.95
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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.