Home / 309,869.29-463,807.45-159,905.32

Finding the Fourth Proportional to 309,869.29, 463,807.45 and 159,905.32

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Solution

The fourth proportional to 309,869.29, 463,807.45 and 159,905.32 is: 239,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,869.29 : 463,807.45 = 159,905.32 : x
  2. Step 2: Convert to fraction form
    309,869.29/463,807.45 = 159,905.32/x
  3. Step 3: Cross multiply
    309,869.29x = 463,807.45 × 159,905.32
  4. Step 4: Simplify right side
    309,869.29x = 74,165,278,710.63
  5. Step 5: Solve for x
    x = 74,165,278,710.63/309,869.29
  6. Step 6: Final answer
    x = 239,343.75

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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.