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Finding the Fourth Proportional to 436,886.20, 655,329.30 and 156,302.20

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Solution

The fourth proportional to 436,886.20, 655,329.30 and 156,302.20 is: 234,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,886.20 : 655,329.30 = 156,302.20 : x
  2. Step 2: Convert to fraction form
    436,886.20/655,329.30 = 156,302.20/x
  3. Step 3: Cross multiply
    436,886.20x = 655,329.30 × 156,302.20
  4. Step 4: Simplify right side
    436,886.20x = 102,429,411,314.46
  5. Step 5: Solve for x
    x = 102,429,411,314.46/436,886.20
  6. Step 6: Final answer
    x = 234,453.30

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1.5x scale

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.