Finding the Fourth Proportional to 390,948.87, 586,497.65 and 134,713.47
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Solution
The fourth proportional to 390,948.87, 586,497.65 and 134,713.47 is: 202,095.82
Step by Step Solution
- Step 1: Write the proportion equation
390,948.87 : 586,497.65 = 134,713.47 : x - Step 2: Convert to fraction form
390,948.87/586,497.65 = 134,713.47/x - Step 3: Cross multiply
390,948.87x = 586,497.65 × 134,713.47 - Step 4: Simplify right side
390,948.87x = 79,009,132,904.78 - Step 5: Solve for x
x = 79,009,132,904.78/390,948.87 - Step 6: Final answer
x = 202,095.82
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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.