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Finding the Fourth Proportional to 255,953.61, 353,199.24 and 153,960.14

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Solution

The fourth proportional to 255,953.61, 353,199.24 and 153,960.14 is: 212,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,953.61 : 353,199.24 = 153,960.14 : x
  2. Step 2: Convert to fraction form
    255,953.61/353,199.24 = 153,960.14/x
  3. Step 3: Cross multiply
    255,953.61x = 353,199.24 × 153,960.14
  4. Step 4: Simplify right side
    255,953.61x = 54,378,605,321.29
  5. Step 5: Solve for x
    x = 54,378,605,321.29/255,953.61
  6. Step 6: Final answer
    x = 212,454.93

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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.