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Finding the Fourth Proportional to 346,344.30, 519,516.45 and 287,246.70

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Solution

The fourth proportional to 346,344.30, 519,516.45 and 287,246.70 is: 430,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,344.30 : 519,516.45 = 287,246.70 : x
  2. Step 2: Convert to fraction form
    346,344.30/519,516.45 = 287,246.70/x
  3. Step 3: Cross multiply
    346,344.30x = 519,516.45 × 287,246.70
  4. Step 4: Simplify right side
    346,344.30x = 149,229,385,858.22
  5. Step 5: Solve for x
    x = 149,229,385,858.22/346,344.30
  6. Step 6: Final answer
    x = 430,870.05

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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.