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Finding the Fourth Proportional to 270,384.64, 373,144.80 and 155,680.32

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Solution

The fourth proportional to 270,384.64, 373,144.80 and 155,680.32 is: 214,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,384.64 : 373,144.80 = 155,680.32 : x
  2. Step 2: Convert to fraction form
    270,384.64/373,144.80 = 155,680.32/x
  3. Step 3: Cross multiply
    270,384.64x = 373,144.80 × 155,680.32
  4. Step 4: Simplify right side
    270,384.64x = 58,091,301,870.34
  5. Step 5: Solve for x
    x = 58,091,301,870.34/270,384.64
  6. Step 6: Final answer
    x = 214,846.90

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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.