Home / 340,155.10-510,306.45-103,491.63

Finding the Fourth Proportional to 340,155.10, 510,306.45 and 103,491.63

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Solution

The fourth proportional to 340,155.10, 510,306.45 and 103,491.63 is: 155,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,155.10 : 510,306.45 = 103,491.63 : x
  2. Step 2: Convert to fraction form
    340,155.10/510,306.45 = 103,491.63/x
  3. Step 3: Cross multiply
    340,155.10x = 510,306.45 × 103,491.63
  4. Step 4: Simplify right side
    340,155.10x = 52,812,446,310.01
  5. Step 5: Solve for x
    x = 52,812,446,310.01/340,155.10
  6. Step 6: Final answer
    x = 155,259.90

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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.