Home / 217,345.06-299,955.72-126,730.36

Finding the Fourth Proportional to 217,345.06, 299,955.72 and 126,730.36

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Solution

The fourth proportional to 217,345.06, 299,955.72 and 126,730.36 is: 174,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,345.06 : 299,955.72 = 126,730.36 : x
  2. Step 2: Convert to fraction form
    217,345.06/299,955.72 = 126,730.36/x
  3. Step 3: Cross multiply
    217,345.06x = 299,955.72 × 126,730.36
  4. Step 4: Simplify right side
    217,345.06x = 38,013,496,379.66
  5. Step 5: Solve for x
    x = 38,013,496,379.66/217,345.06
  6. Step 6: Final answer
    x = 174,899.29

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1.5x scale

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.