Home / 390,832.11-586,238.45-110,345.31

Finding the Fourth Proportional to 390,832.11, 586,238.45 and 110,345.31

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Solution

The fourth proportional to 390,832.11, 586,238.45 and 110,345.31 is: 165,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,832.11 : 586,238.45 = 110,345.31 : x
  2. Step 2: Convert to fraction form
    390,832.11/586,238.45 = 110,345.31/x
  3. Step 3: Cross multiply
    390,832.11x = 586,238.45 × 110,345.31
  4. Step 4: Simplify right side
    390,832.11x = 64,688,662,947.44
  5. Step 5: Solve for x
    x = 64,688,662,947.44/390,832.11
  6. Step 6: Final answer
    x = 165,515.22

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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.