Finding the Fourth Proportional to 458,135.36, 686,501.68 and 191,750.88
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Solution
The fourth proportional to 458,135.36, 686,501.68 and 191,750.88 is: 287,332.77
Step by Step Solution
- Step 1: Write the proportion equation
458,135.36 : 686,501.68 = 191,750.88 : x - Step 2: Convert to fraction form
458,135.36/686,501.68 = 191,750.88/x - Step 3: Cross multiply
458,135.36x = 686,501.68 × 191,750.88 - Step 4: Simplify right side
458,135.36x = 131,637,301,261.48 - Step 5: Solve for x
x = 131,637,301,261.48/458,135.36 - Step 6: Final answer
x = 287,332.77
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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.