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Finding the Fourth Proportional to 293,511.20, 440,266.80 and 153,312.80

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Solution

The fourth proportional to 293,511.20, 440,266.80 and 153,312.80 is: 229,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,511.20 : 440,266.80 = 153,312.80 : x
  2. Step 2: Convert to fraction form
    293,511.20/440,266.80 = 153,312.80/x
  3. Step 3: Cross multiply
    293,511.20x = 440,266.80 × 153,312.80
  4. Step 4: Simplify right side
    293,511.20x = 67,498,535,855.04
  5. Step 5: Solve for x
    x = 67,498,535,855.04/293,511.20
  6. Step 6: Final answer
    x = 229,969.20

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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.