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Finding the Fourth Proportional to 484,210.56, 668,292.48 and 280,267.20

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Solution

The fourth proportional to 484,210.56, 668,292.48 and 280,267.20 is: 386,816.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,210.56 : 668,292.48 = 280,267.20 : x
  2. Step 2: Convert to fraction form
    484,210.56/668,292.48 = 280,267.20/x
  3. Step 3: Cross multiply
    484,210.56x = 668,292.48 × 280,267.20
  4. Step 4: Simplify right side
    484,210.56x = 187,300,462,150.66
  5. Step 5: Solve for x
    x = 187,300,462,150.66/484,210.56
  6. Step 6: Final answer
    x = 386,816.14

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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.