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Finding the Fourth Proportional to 222,159.30, 306,628.92 and 153,345.30

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Solution

The fourth proportional to 222,159.30, 306,628.92 and 153,345.30 is: 211,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,159.30 : 306,628.92 = 153,345.30 : x
  2. Step 2: Convert to fraction form
    222,159.30/306,628.92 = 153,345.30/x
  3. Step 3: Cross multiply
    222,159.30x = 306,628.92 × 153,345.30
  4. Step 4: Simplify right side
    222,159.30x = 47,020,103,726.08
  5. Step 5: Solve for x
    x = 47,020,103,726.08/222,159.30
  6. Step 6: Final answer
    x = 211,650.40

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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.