Home / 259,621.70-389,432.55-159,457.10

Finding the Fourth Proportional to 259,621.70, 389,432.55 and 159,457.10

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Solution

The fourth proportional to 259,621.70, 389,432.55 and 159,457.10 is: 239,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,621.70 : 389,432.55 = 159,457.10 : x
  2. Step 2: Convert to fraction form
    259,621.70/389,432.55 = 159,457.10/x
  3. Step 3: Cross multiply
    259,621.70x = 389,432.55 × 159,457.10
  4. Step 4: Simplify right side
    259,621.70x = 62,097,785,068.61
  5. Step 5: Solve for x
    x = 62,097,785,068.61/259,621.70
  6. Step 6: Final answer
    x = 239,185.65

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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.