Home / 278,847.02-384,807.86-158,011.32

Finding the Fourth Proportional to 278,847.02, 384,807.86 and 158,011.32

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Solution

The fourth proportional to 278,847.02, 384,807.86 and 158,011.32 is: 218,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,847.02 : 384,807.86 = 158,011.32 : x
  2. Step 2: Convert to fraction form
    278,847.02/384,807.86 = 158,011.32/x
  3. Step 3: Cross multiply
    278,847.02x = 384,807.86 × 158,011.32
  4. Step 4: Simplify right side
    278,847.02x = 60,803,997,904.98
  5. Step 5: Solve for x
    x = 60,803,997,904.98/278,847.02
  6. Step 6: Final answer
    x = 218,055.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.