Finding the Fourth Proportional to 257,026,238.58, 354,988,247.04 and 173,249,879.34
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Solution
The fourth proportional to 257,026,238.58, 354,988,247.04 and 173,249,879.34 is: 239,281,683.09
Step by Step Solution
- Step 1: Write the proportion equation
257,026,238.58 : 354,988,247.04 = 173,249,879.34 : x - Step 2: Convert to fraction form
257,026,238.58/354,988,247.04 = 173,249,879.34/x - Step 3: Cross multiply
257,026,238.58x = 354,988,247.04 × 173,249,879.34 - Step 4: Simplify right side
257,026,238.58x = 61,501,670,966,798,120 - Step 5: Solve for x
x = 61,501,670,966,798,120/257,026,238.58 - Step 6: Final answer
x = 239,281,683.09
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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.