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Finding the Fourth Proportional to 180,007.60, 270,011.40 and 170,384.80

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Solution

The fourth proportional to 180,007.60, 270,011.40 and 170,384.80 is: 255,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,007.60 : 270,011.40 = 170,384.80 : x
  2. Step 2: Convert to fraction form
    180,007.60/270,011.40 = 170,384.80/x
  3. Step 3: Cross multiply
    180,007.60x = 270,011.40 × 170,384.80
  4. Step 4: Simplify right side
    180,007.60x = 46,005,838,386.72
  5. Step 5: Solve for x
    x = 46,005,838,386.72/180,007.60
  6. Step 6: Final answer
    x = 255,577.20

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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.