Finding the Fourth Proportional to 423,129.60, 583,924.80 and 232,139.52
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Solution
The fourth proportional to 423,129.60, 583,924.80 and 232,139.52 is: 320,355.80
Step by Step Solution
- Step 1: Write the proportion equation
423,129.60 : 583,924.80 = 232,139.52 : x - Step 2: Convert to fraction form
423,129.60/583,924.80 = 232,139.52/x - Step 3: Cross multiply
423,129.60x = 583,924.80 × 232,139.52 - Step 4: Simplify right side
423,129.60x = 135,552,022,788.10 - Step 5: Solve for x
x = 135,552,022,788.10/423,129.60 - Step 6: Final answer
x = 320,355.80
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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.