Home / 280,150.98-386,626.64-159,303.52

Finding the Fourth Proportional to 280,150.98, 386,626.64 and 159,303.52

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Solution

The fourth proportional to 280,150.98, 386,626.64 and 159,303.52 is: 219,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,150.98 : 386,626.64 = 159,303.52 : x
  2. Step 2: Convert to fraction form
    280,150.98/386,626.64 = 159,303.52/x
  3. Step 3: Cross multiply
    280,150.98x = 386,626.64 × 159,303.52
  4. Step 4: Simplify right side
    280,150.98x = 61,590,984,677.77
  5. Step 5: Solve for x
    x = 61,590,984,677.77/280,150.98
  6. Step 6: Final answer
    x = 219,849.26

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1.5x scale

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.