Home / 289,715.10-434,572.65-102,702.30

Finding the Fourth Proportional to 289,715.10, 434,572.65 and 102,702.30

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Solution

The fourth proportional to 289,715.10, 434,572.65 and 102,702.30 is: 154,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,715.10 : 434,572.65 = 102,702.30 : x
  2. Step 2: Convert to fraction form
    289,715.10/434,572.65 = 102,702.30/x
  3. Step 3: Cross multiply
    289,715.10x = 434,572.65 × 102,702.30
  4. Step 4: Simplify right side
    289,715.10x = 44,631,610,672.10
  5. Step 5: Solve for x
    x = 44,631,610,672.10/289,715.10
  6. Step 6: Final answer
    x = 154,053.45

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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.