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Finding the Fourth Proportional to 152,226.78, 210,060.45 and 84,242.40

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Solution

The fourth proportional to 152,226.78, 210,060.45 and 84,242.40 is: 116,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,226.78 : 210,060.45 = 84,242.40 : x
  2. Step 2: Convert to fraction form
    152,226.78/210,060.45 = 84,242.40/x
  3. Step 3: Cross multiply
    152,226.78x = 210,060.45 × 84,242.40
  4. Step 4: Simplify right side
    152,226.78x = 17,695,996,453.08
  5. Step 5: Solve for x
    x = 17,695,996,453.08/152,226.78
  6. Step 6: Final answer
    x = 116,247.59

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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.