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Finding the Fourth Proportional to 174,417.80, 261,626.70 and 115,320.20

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Solution

The fourth proportional to 174,417.80, 261,626.70 and 115,320.20 is: 172,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,417.80 : 261,626.70 = 115,320.20 : x
  2. Step 2: Convert to fraction form
    174,417.80/261,626.70 = 115,320.20/x
  3. Step 3: Cross multiply
    174,417.80x = 261,626.70 × 115,320.20
  4. Step 4: Simplify right side
    174,417.80x = 30,170,843,369.34
  5. Step 5: Solve for x
    x = 30,170,843,369.34/174,417.80
  6. Step 6: Final answer
    x = 172,980.30

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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.