Home / 210,914.28-291,061.71-115,420.98

Finding the Fourth Proportional to 210,914.28, 291,061.71 and 115,420.98

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Solution

The fourth proportional to 210,914.28, 291,061.71 and 115,420.98 is: 159,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,914.28 : 291,061.71 = 115,420.98 : x
  2. Step 2: Convert to fraction form
    210,914.28/291,061.71 = 115,420.98/x
  3. Step 3: Cross multiply
    210,914.28x = 291,061.71 × 115,420.98
  4. Step 4: Simplify right side
    210,914.28x = 33,594,627,808.68
  5. Step 5: Solve for x
    x = 33,594,627,808.68/210,914.28
  6. Step 6: Final answer
    x = 159,280.95

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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.