Home / 210,880.06-291,014.16-115,386.72

Finding the Fourth Proportional to 210,880.06, 291,014.16 and 115,386.72

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Solution

The fourth proportional to 210,880.06, 291,014.16 and 115,386.72 is: 159,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,880.06 : 291,014.16 = 115,386.72 : x
  2. Step 2: Convert to fraction form
    210,880.06/291,014.16 = 115,386.72/x
  3. Step 3: Cross multiply
    210,880.06x = 291,014.16 × 115,386.72
  4. Step 4: Simplify right side
    210,880.06x = 33,579,169,395.96
  5. Step 5: Solve for x
    x = 33,579,169,395.96/210,880.06
  6. Step 6: Final answer
    x = 159,233.50

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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.