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Finding the Fourth Proportional to 250,980.48, 346,353.60 and 137,810.40

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Solution

The fourth proportional to 250,980.48, 346,353.60 and 137,810.40 is: 190,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,980.48 : 346,353.60 = 137,810.40 : x
  2. Step 2: Convert to fraction form
    250,980.48/346,353.60 = 137,810.40/x
  3. Step 3: Cross multiply
    250,980.48x = 346,353.60 × 137,810.40
  4. Step 4: Simplify right side
    250,980.48x = 47,731,128,157.44
  5. Step 5: Solve for x
    x = 47,731,128,157.44/250,980.48
  6. Step 6: Final answer
    x = 190,178.65

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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.