Home / 279,823.32-386,158.91-152,501.64

Finding the Fourth Proportional to 279,823.32, 386,158.91 and 152,501.64

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Solution

The fourth proportional to 279,823.32, 386,158.91 and 152,501.64 is: 210,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,823.32 : 386,158.91 = 152,501.64 : x
  2. Step 2: Convert to fraction form
    279,823.32/386,158.91 = 152,501.64/x
  3. Step 3: Cross multiply
    279,823.32x = 386,158.91 × 152,501.64
  4. Step 4: Simplify right side
    279,823.32x = 58,889,866,313.10
  5. Step 5: Solve for x
    x = 58,889,866,313.10/279,823.32
  6. Step 6: Final answer
    x = 210,453.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.