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Finding the Fourth Proportional to 239,125.50, 358,746.84 and 70,644.78

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Solution

The fourth proportional to 239,125.50, 358,746.84 and 70,644.78 is: 105,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,125.50 : 358,746.84 = 70,644.78 : x
  2. Step 2: Convert to fraction form
    239,125.50/358,746.84 = 70,644.78/x
  3. Step 3: Cross multiply
    239,125.50x = 358,746.84 × 70,644.78
  4. Step 4: Simplify right side
    239,125.50x = 25,343,591,587.50
  5. Step 5: Solve for x
    x = 25,343,591,587.50/239,125.50
  6. Step 6: Final answer
    x = 105,984.48

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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.