Finding the Fourth Proportional to 421,430.95, 581,526.96 and 249,354.19
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Solution
The fourth proportional to 421,430.95, 581,526.96 and 249,354.19 is: 344,080.53
Step by Step Solution
- Step 1: Write the proportion equation
421,430.95 : 581,526.96 = 249,354.19 : x - Step 2: Convert to fraction form
421,430.95/581,526.96 = 249,354.19/x - Step 3: Cross multiply
421,430.95x = 581,526.96 × 249,354.19 - Step 4: Simplify right side
421,430.95x = 145,006,184,073.96 - Step 5: Solve for x
x = 145,006,184,073.96/421,430.95 - Step 6: Final answer
x = 344,080.53
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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.