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Finding the Fourth Proportional to 360,805.04, 498,011.04 and 209,931.20

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Solution

The fourth proportional to 360,805.04, 498,011.04 and 209,931.20 is: 289,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,805.04 : 498,011.04 = 209,931.20 : x
  2. Step 2: Convert to fraction form
    360,805.04/498,011.04 = 209,931.20/x
  3. Step 3: Cross multiply
    360,805.04x = 498,011.04 × 209,931.20
  4. Step 4: Simplify right side
    360,805.04x = 104,548,055,240.45
  5. Step 5: Solve for x
    x = 104,548,055,240.45/360,805.04
  6. Step 6: Final answer
    x = 289,763.29

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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.