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Finding the Fourth Proportional to 340,154.10, 510,304.95 and 103,490.63

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Solution

The fourth proportional to 340,154.10, 510,304.95 and 103,490.63 is: 155,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,154.10 : 510,304.95 = 103,490.63 : x
  2. Step 2: Convert to fraction form
    340,154.10/510,304.95 = 103,490.63/x
  3. Step 3: Cross multiply
    340,154.10x = 510,304.95 × 103,490.63
  4. Step 4: Simplify right side
    340,154.10x = 52,811,778,216.09
  5. Step 5: Solve for x
    x = 52,811,778,216.09/340,154.10
  6. Step 6: Final answer
    x = 155,258.39

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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.