Finding the Fourth Proportional to 316,345.99, 474,518.99 and 138,854.55
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Solution
The fourth proportional to 316,345.99, 474,518.99 and 138,854.55 is: 208,281.83
Step by Step Solution
- Step 1: Write the proportion equation
316,345.99 : 474,518.99 = 138,854.55 : x - Step 2: Convert to fraction form
316,345.99/474,518.99 = 138,854.55/x - Step 3: Cross multiply
316,345.99x = 474,518.99 × 138,854.55 - Step 4: Simplify right side
316,345.99x = 65,889,120,822.90 - Step 5: Solve for x
x = 65,889,120,822.90/316,345.99 - Step 6: Final answer
x = 208,281.83
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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.