Home / 272,256.40-408,056.55-139,068.10

Finding the Fourth Proportional to 272,256.40, 408,056.55 and 139,068.10

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Solution

The fourth proportional to 272,256.40, 408,056.55 and 139,068.10 is: 208,434.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,256.40 : 408,056.55 = 139,068.10 : x
  2. Step 2: Convert to fraction form
    272,256.40/408,056.55 = 139,068.10/x
  3. Step 3: Cross multiply
    272,256.40x = 408,056.55 × 139,068.10
  4. Step 4: Simplify right side
    272,256.40x = 56,747,649,101.06
  5. Step 5: Solve for x
    x = 56,747,649,101.06/272,256.40
  6. Step 6: Final answer
    x = 208,434.58

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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.