Home / 289,218.36-434,493.54-205,187.16

Finding the Fourth Proportional to 289,218.36, 434,493.54 and 205,187.16

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Solution

The fourth proportional to 289,218.36, 434,493.54 and 205,187.16 is: 308,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,218.36 : 434,493.54 = 205,187.16 : x
  2. Step 2: Convert to fraction form
    289,218.36/434,493.54 = 205,187.16/x
  3. Step 3: Cross multiply
    289,218.36x = 434,493.54 × 205,187.16
  4. Step 4: Simplify right side
    289,218.36x = 89,152,495,510.95
  5. Step 5: Solve for x
    x = 89,152,495,510.95/289,218.36
  6. Step 6: Final answer
    x = 308,253.24

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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.