Home / 210,979.65-291,151.98-115,488.39

Finding the Fourth Proportional to 210,979.65, 291,151.98 and 115,488.39

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Solution

The fourth proportional to 210,979.65, 291,151.98 and 115,488.39 is: 159,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,979.65 : 291,151.98 = 115,488.39 : x
  2. Step 2: Convert to fraction form
    210,979.65/291,151.98 = 115,488.39/x
  3. Step 3: Cross multiply
    210,979.65x = 291,151.98 × 115,488.39
  4. Step 4: Simplify right side
    210,979.65x = 33,624,673,415.51
  5. Step 5: Solve for x
    x = 33,624,673,415.51/210,979.65
  6. Step 6: Final answer
    x = 159,374.01

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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.