Home / 152,005.20-228,007.80-143,840.40

Finding the Fourth Proportional to 152,005.20, 228,007.80 and 143,840.40

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Solution

The fourth proportional to 152,005.20, 228,007.80 and 143,840.40 is: 215,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,005.20 : 228,007.80 = 143,840.40 : x
  2. Step 2: Convert to fraction form
    152,005.20/228,007.80 = 143,840.40/x
  3. Step 3: Cross multiply
    152,005.20x = 228,007.80 × 143,840.40
  4. Step 4: Simplify right side
    152,005.20x = 32,796,733,155.12
  5. Step 5: Solve for x
    x = 32,796,733,155.12/152,005.20
  6. Step 6: Final answer
    x = 215,760.60

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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.