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Finding the Fourth Proportional to 153,219, 229,828.60 and 40,899.68

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Solution

The fourth proportional to 153,219, 229,828.60 and 40,899.68 is: 61,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,219 : 229,828.60 = 40,899.68 : x
  2. Step 2: Convert to fraction form
    153,219/229,828.60 = 40,899.68/x
  3. Step 3: Cross multiply
    153,219x = 229,828.60 × 40,899.68
  4. Step 4: Simplify right side
    153,219x = 9,399,916,194.85
  5. Step 5: Solve for x
    x = 9,399,916,194.85/153,219
  6. Step 6: Final answer
    x = 61,349.55

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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.