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Finding the Fourth Proportional to 255,389.62, 382,628.85 and 155,498.26

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Solution

The fourth proportional to 255,389.62, 382,628.85 and 155,498.26 is: 232,970.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,389.62 : 382,628.85 = 155,498.26 : x
  2. Step 2: Convert to fraction form
    255,389.62/382,628.85 = 155,498.26/x
  3. Step 3: Cross multiply
    255,389.62x = 382,628.85 × 155,498.26
  4. Step 4: Simplify right side
    255,389.62x = 59,498,120,400.80
  5. Step 5: Solve for x
    x = 59,498,120,400.80/255,389.62
  6. Step 6: Final answer
    x = 232,970.00

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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.