Finding the Fourth Proportional to 368,590.20, 508,670.85 and 207,455.70
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Solution
The fourth proportional to 368,590.20, 508,670.85 and 207,455.70 is: 286,298.08
Step by Step Solution
- Step 1: Write the proportion equation
368,590.20 : 508,670.85 = 207,455.70 : x - Step 2: Convert to fraction form
368,590.20/508,670.85 = 207,455.70/x - Step 3: Cross multiply
368,590.20x = 508,670.85 × 207,455.70 - Step 4: Simplify right side
368,590.20x = 105,526,667,256.35 - Step 5: Solve for x
x = 105,526,667,256.35/368,590.20 - Step 6: Final answer
x = 286,298.08
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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.