Finding the Fourth Proportional to 400,848.75, 553,155.08 and 239,792.81
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Solution
The fourth proportional to 400,848.75, 553,155.08 and 239,792.81 is: 330,904.38
Step by Step Solution
- Step 1: Write the proportion equation
400,848.75 : 553,155.08 = 239,792.81 : x - Step 2: Convert to fraction form
400,848.75/553,155.08 = 239,792.81/x - Step 3: Cross multiply
400,848.75x = 553,155.08 × 239,792.81 - Step 4: Simplify right side
400,848.75x = 132,642,607,034.24 - Step 5: Solve for x
x = 132,642,607,034.24/400,848.75 - Step 6: Final answer
x = 330,904.38
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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.