Home / 210,278.19-315,421.76-75,351.06

Finding the Fourth Proportional to 210,278.19, 315,421.76 and 75,351.06

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Solution

The fourth proportional to 210,278.19, 315,421.76 and 75,351.06 is: 113,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,278.19 : 315,421.76 = 75,351.06 : x
  2. Step 2: Convert to fraction form
    210,278.19/315,421.76 = 75,351.06/x
  3. Step 3: Cross multiply
    210,278.19x = 315,421.76 × 75,351.06
  4. Step 4: Simplify right side
    210,278.19x = 23,767,363,963.07
  5. Step 5: Solve for x
    x = 23,767,363,963.07/210,278.19
  6. Step 6: Final answer
    x = 113,028.19

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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.