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Finding the Fourth Proportional to 340,276.57, 510,492.31 and 103,637.70

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Solution

The fourth proportional to 340,276.57, 510,492.31 and 103,637.70 is: 155,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,276.57 : 510,492.31 = 103,637.70 : x
  2. Step 2: Convert to fraction form
    340,276.57/510,492.31 = 103,637.70/x
  3. Step 3: Cross multiply
    340,276.57x = 510,492.31 × 103,637.70
  4. Step 4: Simplify right side
    340,276.57x = 52,906,248,616.99
  5. Step 5: Solve for x
    x = 52,906,248,616.99/340,276.57
  6. Step 6: Final answer
    x = 155,480.14

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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.