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Finding the Fourth Proportional to 309,036.60, 463,554.90 and 238,966.20

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Solution

The fourth proportional to 309,036.60, 463,554.90 and 238,966.20 is: 358,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,036.60 : 463,554.90 = 238,966.20 : x
  2. Step 2: Convert to fraction form
    309,036.60/463,554.90 = 238,966.20/x
  3. Step 3: Cross multiply
    309,036.60x = 463,554.90 × 238,966.20
  4. Step 4: Simplify right side
    309,036.60x = 110,773,952,944.38
  5. Step 5: Solve for x
    x = 110,773,952,944.38/309,036.60
  6. Step 6: Final answer
    x = 358,449.30

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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.