Finding the Fourth Proportional to 493,646.32, 740,498.19 and 138,688.02
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Solution
The fourth proportional to 493,646.32, 740,498.19 and 138,688.02 is: 208,040.09
Step by Step Solution
- Step 1: Write the proportion equation
493,646.32 : 740,498.19 = 138,688.02 : x - Step 2: Convert to fraction form
493,646.32/740,498.19 = 138,688.02/x - Step 3: Cross multiply
493,646.32x = 740,498.19 × 138,688.02 - Step 4: Simplify right side
493,646.32x = 102,698,223,388.75 - Step 5: Solve for x
x = 102,698,223,388.75/493,646.32 - Step 6: Final answer
x = 208,040.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.