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Finding the Fourth Proportional to 255,639.46, 352,808.82 and 153,698.26

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Solution

The fourth proportional to 255,639.46, 352,808.82 and 153,698.26 is: 212,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,639.46 : 352,808.82 = 153,698.26 : x
  2. Step 2: Convert to fraction form
    255,639.46/352,808.82 = 153,698.26/x
  3. Step 3: Cross multiply
    255,639.46x = 352,808.82 × 153,698.26
  4. Step 4: Simplify right side
    255,639.46x = 54,226,101,746.65
  5. Step 5: Solve for x
    x = 54,226,101,746.65/255,639.46
  6. Step 6: Final answer
    x = 212,119.45

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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.