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Finding the Fourth Proportional to 230,038.15, 317,468.03 and 139,403.03

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Solution

The fourth proportional to 230,038.15, 317,468.03 and 139,403.03 is: 192,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,038.15 : 317,468.03 = 139,403.03 : x
  2. Step 2: Convert to fraction form
    230,038.15/317,468.03 = 139,403.03/x
  3. Step 3: Cross multiply
    230,038.15x = 317,468.03 × 139,403.03
  4. Step 4: Simplify right side
    230,038.15x = 44,256,004,201.99
  5. Step 5: Solve for x
    x = 44,256,004,201.99/230,038.15
  6. Step 6: Final answer
    x = 192,385.50

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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.