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Finding the Fourth Proportional to 147,798.80, 221,698.20 and 108,432.80

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Solution

The fourth proportional to 147,798.80, 221,698.20 and 108,432.80 is: 162,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,798.80 : 221,698.20 = 108,432.80 : x
  2. Step 2: Convert to fraction form
    147,798.80/221,698.20 = 108,432.80/x
  3. Step 3: Cross multiply
    147,798.80x = 221,698.20 × 108,432.80
  4. Step 4: Simplify right side
    147,798.80x = 24,039,356,580.96
  5. Step 5: Solve for x
    x = 24,039,356,580.96/147,798.80
  6. Step 6: Final answer
    x = 162,649.20

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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.