Home / 288,519.40-398,150.93-175,378.60

Finding the Fourth Proportional to 288,519.40, 398,150.93 and 175,378.60

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Solution

The fourth proportional to 288,519.40, 398,150.93 and 175,378.60 is: 242,018.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,519.40 : 398,150.93 = 175,378.60 : x
  2. Step 2: Convert to fraction form
    288,519.40/398,150.93 = 175,378.60/x
  3. Step 3: Cross multiply
    288,519.40x = 398,150.93 × 175,378.60
  4. Step 4: Simplify right side
    288,519.40x = 69,827,152,692.10
  5. Step 5: Solve for x
    x = 69,827,152,692.10/288,519.40
  6. Step 6: Final answer
    x = 242,018.92

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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.