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Finding the Fourth Proportional to 219,887.40, 329,831.10 and 149,903.40

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Solution

The fourth proportional to 219,887.40, 329,831.10 and 149,903.40 is: 224,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,887.40 : 329,831.10 = 149,903.40 : x
  2. Step 2: Convert to fraction form
    219,887.40/329,831.10 = 149,903.40/x
  3. Step 3: Cross multiply
    219,887.40x = 329,831.10 × 149,903.40
  4. Step 4: Simplify right side
    219,887.40x = 49,442,803,315.74
  5. Step 5: Solve for x
    x = 49,442,803,315.74/219,887.40
  6. Step 6: Final answer
    x = 224,855.10

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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.