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Finding the Fourth Proportional to 346,712.90, 520,069.35 and 204,412.10

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Solution

The fourth proportional to 346,712.90, 520,069.35 and 204,412.10 is: 306,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,712.90 : 520,069.35 = 204,412.10 : x
  2. Step 2: Convert to fraction form
    346,712.90/520,069.35 = 204,412.10/x
  3. Step 3: Cross multiply
    346,712.90x = 520,069.35 × 204,412.10
  4. Step 4: Simplify right side
    346,712.90x = 106,308,467,979.14
  5. Step 5: Solve for x
    x = 106,308,467,979.14/346,712.90
  6. Step 6: Final answer
    x = 306,618.15

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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.