Home / 389,448.32-537,439.04-210,600.32

Finding the Fourth Proportional to 389,448.32, 537,439.04 and 210,600.32

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Solution

The fourth proportional to 389,448.32, 537,439.04 and 210,600.32 is: 290,628.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,448.32 : 537,439.04 = 210,600.32 : x
  2. Step 2: Convert to fraction form
    389,448.32/537,439.04 = 210,600.32/x
  3. Step 3: Cross multiply
    389,448.32x = 537,439.04 × 210,600.32
  4. Step 4: Simplify right side
    389,448.32x = 113,184,833,804.49
  5. Step 5: Solve for x
    x = 113,184,833,804.49/389,448.32
  6. Step 6: Final answer
    x = 290,628.64

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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.