Home / 255,448.08-382,486.88-142,807.50

Finding the Fourth Proportional to 255,448.08, 382,486.88 and 142,807.50

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Solution

The fourth proportional to 255,448.08, 382,486.88 and 142,807.50 is: 213,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,448.08 : 382,486.88 = 142,807.50 : x
  2. Step 2: Convert to fraction form
    255,448.08/382,486.88 = 142,807.50/x
  3. Step 3: Cross multiply
    255,448.08x = 382,486.88 × 142,807.50
  4. Step 4: Simplify right side
    255,448.08x = 54,621,995,115.60
  5. Step 5: Solve for x
    x = 54,621,995,115.60/255,448.08
  6. Step 6: Final answer
    x = 213,828.17

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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.