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Finding the Fourth Proportional to 346,680.30, 520,069.05 and 136,269.30

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Solution

The fourth proportional to 346,680.30, 520,069.05 and 136,269.30 is: 204,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,680.30 : 520,069.05 = 136,269.30 : x
  2. Step 2: Convert to fraction form
    346,680.30/520,069.05 = 136,269.30/x
  3. Step 3: Cross multiply
    346,680.30x = 520,069.05 × 136,269.30
  4. Step 4: Simplify right side
    346,680.30x = 70,869,445,395.17
  5. Step 5: Solve for x
    x = 70,869,445,395.17/346,680.30
  6. Step 6: Final answer
    x = 204,423.05

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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.