Home / 255,112.80-382,669.20-219,683.40

Finding the Fourth Proportional to 255,112.80, 382,669.20 and 219,683.40

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Solution

The fourth proportional to 255,112.80, 382,669.20 and 219,683.40 is: 329,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,112.80 : 382,669.20 = 219,683.40 : x
  2. Step 2: Convert to fraction form
    255,112.80/382,669.20 = 219,683.40/x
  3. Step 3: Cross multiply
    255,112.80x = 382,669.20 × 219,683.40
  4. Step 4: Simplify right side
    255,112.80x = 84,066,070,931.28
  5. Step 5: Solve for x
    x = 84,066,070,931.28/255,112.80
  6. Step 6: Final answer
    x = 329,525.10

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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.