Home / 210,900.56-291,048.49-129,227.40

Finding the Fourth Proportional to 210,900.56, 291,048.49 and 129,227.40

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Solution

The fourth proportional to 210,900.56, 291,048.49 and 129,227.40 is: 178,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,900.56 : 291,048.49 = 129,227.40 : x
  2. Step 2: Convert to fraction form
    210,900.56/291,048.49 = 129,227.40/x
  3. Step 3: Cross multiply
    210,900.56x = 291,048.49 × 129,227.40
  4. Step 4: Simplify right side
    210,900.56x = 37,611,439,798.16
  5. Step 5: Solve for x
    x = 37,611,439,798.16/210,900.56
  6. Step 6: Final answer
    x = 178,337.32

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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.