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Finding the Fourth Proportional to 225,874.79, 311,763.95 and 153,400.34

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Solution

The fourth proportional to 225,874.79, 311,763.95 and 153,400.34 is: 211,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,874.79 : 311,763.95 = 153,400.34 : x
  2. Step 2: Convert to fraction form
    225,874.79/311,763.95 = 153,400.34/x
  3. Step 3: Cross multiply
    225,874.79x = 311,763.95 × 153,400.34
  4. Step 4: Simplify right side
    225,874.79x = 47,824,695,162.74
  5. Step 5: Solve for x
    x = 47,824,695,162.74/225,874.79
  6. Step 6: Final answer
    x = 211,731.00

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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.