Home / 289,628.10-434,442.15-102,615.30

Finding the Fourth Proportional to 289,628.10, 434,442.15 and 102,615.30

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Solution

The fourth proportional to 289,628.10, 434,442.15 and 102,615.30 is: 153,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,628.10 : 434,442.15 = 102,615.30 : x
  2. Step 2: Convert to fraction form
    289,628.10/434,442.15 = 102,615.30/x
  3. Step 3: Cross multiply
    289,628.10x = 434,442.15 × 102,615.30
  4. Step 4: Simplify right side
    289,628.10x = 44,580,411,554.90
  5. Step 5: Solve for x
    x = 44,580,411,554.90/289,628.10
  6. Step 6: Final answer
    x = 153,922.95

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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.