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Finding the Fourth Proportional to 340,154.60, 510,305.70 and 103,491.13

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Solution

The fourth proportional to 340,154.60, 510,305.70 and 103,491.13 is: 155,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,154.60 : 510,305.70 = 103,491.13 : x
  2. Step 2: Convert to fraction form
    340,154.60/510,305.70 = 103,491.13/x
  3. Step 3: Cross multiply
    340,154.60x = 510,305.70 × 103,491.13
  4. Step 4: Simplify right side
    340,154.60x = 52,812,113,538.44
  5. Step 5: Solve for x
    x = 52,812,113,538.44/340,154.60
  6. Step 6: Final answer
    x = 155,259.15

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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.