Finding the Fourth Proportional to 249,953.60, 344,931.36 and 136,774.08
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Solution
The fourth proportional to 249,953.60, 344,931.36 and 136,774.08 is: 188,745.71
Step by Step Solution
- Step 1: Write the proportion equation
249,953.60 : 344,931.36 = 136,774.08 : x - Step 2: Convert to fraction form
249,953.60/344,931.36 = 136,774.08/x - Step 3: Cross multiply
249,953.60x = 344,931.36 × 136,774.08 - Step 4: Simplify right side
249,953.60x = 47,177,669,427.15 - Step 5: Solve for x
x = 47,177,669,427.15/249,953.60 - Step 6: Final answer
x = 188,745.71
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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.