Home / 210,005.55-315,008.33-115,199.10

Finding the Fourth Proportional to 210,005.55, 315,008.33 and 115,199.10

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Solution

The fourth proportional to 210,005.55, 315,008.33 and 115,199.10 is: 172,798.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005.55 : 315,008.33 = 115,199.10 : x
  2. Step 2: Convert to fraction form
    210,005.55/315,008.33 = 115,199.10/x
  3. Step 3: Cross multiply
    210,005.55x = 315,008.33 × 115,199.10
  4. Step 4: Simplify right side
    210,005.55x = 36,288,675,532.51
  5. Step 5: Solve for x
    x = 36,288,675,532.51/210,005.55
  6. Step 6: Final answer
    x = 172,798.65

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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.