Home / 250,389.40-345,657.11-142,938.67

Finding the Fourth Proportional to 250,389.40, 345,657.11 and 142,938.67

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Solution

The fourth proportional to 250,389.40, 345,657.11 and 142,938.67 is: 197,323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,389.40 : 345,657.11 = 142,938.67 : x
  2. Step 2: Convert to fraction form
    250,389.40/345,657.11 = 142,938.67/x
  3. Step 3: Cross multiply
    250,389.40x = 345,657.11 × 142,938.67
  4. Step 4: Simplify right side
    250,389.40x = 49,407,767,579.44
  5. Step 5: Solve for x
    x = 49,407,767,579.44/250,389.40
  6. Step 6: Final answer
    x = 197,323.72

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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.