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Finding the Fourth Proportional to 384,024.60, 575,259.30 and 217,618.20

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Solution

The fourth proportional to 384,024.60, 575,259.30 and 217,618.20 is: 325,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,024.60 : 575,259.30 = 217,618.20 : x
  2. Step 2: Convert to fraction form
    384,024.60/575,259.30 = 217,618.20/x
  3. Step 3: Cross multiply
    384,024.60x = 575,259.30 × 217,618.20
  4. Step 4: Simplify right side
    384,024.60x = 125,186,893,399.26
  5. Step 5: Solve for x
    x = 125,186,893,399.26/384,024.60
  6. Step 6: Final answer
    x = 325,986.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.