Home / 216,330.10-298,113.78-155,786.35

Finding the Fourth Proportional to 216,330.10, 298,113.78 and 155,786.35

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Solution

The fourth proportional to 216,330.10, 298,113.78 and 155,786.35 is: 214,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,330.10 : 298,113.78 = 155,786.35 : x
  2. Step 2: Convert to fraction form
    216,330.10/298,113.78 = 155,786.35/x
  3. Step 3: Cross multiply
    216,330.10x = 298,113.78 × 155,786.35
  4. Step 4: Simplify right side
    216,330.10x = 46,442,057,670.90
  5. Step 5: Solve for x
    x = 46,442,057,670.90/216,330.10
  6. Step 6: Final answer
    x = 214,681.44

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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.