Home / 208,247.40-312,368.32-50,477.20

Finding the Fourth Proportional to 208,247.40, 312,368.32 and 50,477.20

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Solution

The fourth proportional to 208,247.40, 312,368.32 and 50,477.20 is: 75,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,247.40 : 312,368.32 = 50,477.20 : x
  2. Step 2: Convert to fraction form
    208,247.40/312,368.32 = 50,477.20/x
  3. Step 3: Cross multiply
    208,247.40x = 312,368.32 × 50,477.20
  4. Step 4: Simplify right side
    208,247.40x = 15,767,478,162.30
  5. Step 5: Solve for x
    x = 15,767,478,162.30/208,247.40
  6. Step 6: Final answer
    x = 75,715.13

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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.